"After making a lot of progress with Mandriva Linux 2007, I thought perhaps Mandriva had turned over a new leaf, and was using that release as a starting point for an overall better quality operating environment. I was totally wrong. Both the PowerPack Edition and Discovery/LX have slid so far back with version 2007.1 that I have serious doubts as to the future of Mandriva's viability as a commercial desktop operating system." Read more at SoftwareInReview.

Adobe Systems plans to open-source Flex, its development framework for building Flash and Apollo-based applications. The company on Wednesday is expected to announce the move, which will start when it releases a beta of the next version of Flex, code-named Moxie, in June.

According to kerneltrap: "The future of Reiser4 was raised on the lkml, with the filesystem's creator, Hans Reiser, awaiting his May 7th trial. Concerns that the filesystem wasn't being maintained were laid to rest when Andrew Morton stated, 'the namesys engineers continue to maintain reiser4 and I continue to receive patches for it.'"

NeoSmart has the goods on the release of Windows Longhorn Server Beta 3, and the availability of public ISO images for x86, x64, and Itanium versions of the English, German, and Japanese localizations of the various Windows Server flavors. According to NeoSmart, it's the same as the April CTP, but with some bug fixes and compiler optimizations.

Linux Kernel 2.6.21 has been announced. Linus writes: "So the big change during 2.6.21 is all the timer changes to support a tickless system (and even with ticks, more varied time sources). Thanks (when it no longer broke for lots of people ;) go to Thomas Gleixner and Ingo Molnar and a cadre of testers and coders." More info here and here.

Ubuntu Open Week is a series of IRC meetings of people behind the distribution and the community. Mark Shuttleworth answered various questions on Tuesday and Wednesday. The interview covers many issues, including: GPL v3, proprietary software, Microsoft's $3 project, Launchpad, non-free stuff in Ubuntu, April 19th siege of ubuntu.com, Canonical vs. Ubuntu Foundation, becoming F/OSS contributor. Full logs are available on Ubuntu wiki. Ubuntu News has a digest with the most interesting pieces. Also, another interview with Mark is here and four interesting Ubuntu articles are here, here, here and here.

"One of the many new technologies for KDE 4 is the often mentioned, but seldom explained Solid hardware API. Hardware has always been a bit of an annoying element of using Linux and other UNIX-like operating systems, but Solid hopes to fix that for KDE 4. In many ways, Solid is like Phonon, in that it's a Qt/KDE style API around already existing components at the lower level, such as freedesktop.org's HAL. It is already quite functional in the backend, and it's already affecting visible KDE components."

Paul Thurrott reviews the latest CTP of Windows Home Server. "I remain excited about WHS and while one might easily come up with a number of features they'd like to see added to the product - a server-based version of Media Center comes to mind - know this: This is the initial version of WHS, Microsoft plans to keep improving it over time, and they're listening to your suggestions and ideas. As with the first version of Media Center, the technology is in a nascent stage but is already quite compelling. If this first version of WHS is so good, I can only imagine what the future holds."

"More than half of the 1.2 million lines of code for the real-time kernel technology have been moved into the mainline Linux kernel over the past year, Tim Burke, the director of emerging technologies at Red Hat, said at the Linux/Open Source on Wall Street conference on April 23."

A month ago I wrote a review on Ubuntu's 7.04 version and in it I promised a second look once the final version was to released. Feisty Fawn was released last week and as it seems so far, it is one of the most (if not the most) successful Linux distro release ever. This means that we can't help it but compare it with XP and Mac OS X, after having tested it in 3 laptops and 2 desktops in my lab.

"Jailing is a mechanism to virtually change a system's root directory. By employing this method, administrators can isolate services so that they cannot access the real filesystem structure. You should run unsecured and sensitive network services in a chroot jail, because if a hacker can break into a vulnerable service he could exploit your whole system. If a service is jailed, the intruder will be able to see only what you want him to see - that is, nothing useful. Some of the most frequent targets of attack, which therefore should be jailed, are BIND, Apache, FTP, and SSH. SSHjail is a patch for the OpenSSH daemon. It modifies two OpenSSH files (session.c and version.h) and allows you to jail your SSH service without any need for SSH reconfiguration."

The prototype for a revolutionary new general-purpose computer processor, which has the potential of reaching trillions of calculations per second, has been designed and built by a team of computer scientists at The University of Texas at Austin. The new processor, known as TRIPS (Tera-op, Reliable, Intelligently adaptive Processing System), could be used to accelerate industrial, consumer and scientific computing. Professors Stephen Keckler, Doug Burger and Kathryn McKinley have been working on underlying technology that culminated in the TRIPS prototype for the past seven years. Their research team designed and built the hardware prototype chips and the software that runs on the chips.

"Today, IBM announced a public beta trial of a virtual Linux environment that will let x86 applications run on its System p Unix servers without modification. The new IBM System p Application Virtual Environment technology will allow x86 binaries to run as well without modification, removing the biggest barrier against effective virtualization for some companies. As a result, customers will be able to consolidate dozens, if not hundreds, of servers into one virtual environment."

"When free software supporters participate in the French presidential election on April 22 for the first round of voting, they will have information that may be unique in the world: position statements from all major parties on issues about free software, copyright, patents, and digital rights. Even more surprisingly - at least from a North American perspective - a majority of the candidates have heard of these issues and developed positions on them."