Apple conceded that it will be unable to release its next generation operating system in June as previously planned and now says it anticipates launching the software in October. In a statement released after the close of the stock market, Apple said its highly anticipated iPhone has already passed several of its required certification tests and is on schedule to ship in late June as planned. "We can't wait until customers get their hands (and fingers) on it and experience what a revolutionary and magical product it is," Apple said. "However, iPhone contains the most sophisticated software ever shipped on a mobile device, and finishing it on time has not come without a price - we had to borrow some key software engineering and QA resources from our Mac OS X team, and as a result we will not be able to release Leopard at our WWDC in early June as planned." Update: New Leopard screenshots.

CentOS 5 has been released. This release contains many enhancements, including the integration of Xen, a new SELinux policy that allows for easier modification, AIGLX/compiz, and up to date versions of important opensource software.

"In the usual announcement to the Ubuntu developer list Ubuntu founder Mark Suttleworth this morning announced the name of the next Ubuntu release plus one, due out in October 2007: Gutsy Gibbon. Gutsy will follow Feisty Fawn due for release on April 19. But, more interestingly, Shuttleworth also talked of a new ultra-free version of Ubuntu that can be expected alongside Gutsy Gibbon."

"After a short delay due to a heavy dosage of 'Real Life', I return to bring you more on the technologies behind KDE 4. This week I am featuring Strigi, an information extraction subsystem that is being fully deployed for KDE 4.0. KDE has previously had the ability to extract information about files of various types, and has used them in a variety of functional contexts, such as the Properties Dialog. Strigi promises many improvements over the existing versions."

"Accepted student applications for Google Summer of Code have been announced! We accepted over 900 student applicants from a pool of nearly 6,200 applications. All the mentoring organizations that will participate in Google Summer of Code 2007 are listed. You can learn more about the accepted students and their projects by visiting each organization's 'about' page."

"I must say that both of these distros have pleased me a lot and completely suffice my requirement of a home desktop system. Both automatically detected all my hardware and had installed the drivers required. However, when it comes to comparing the two, I get a little biased towards the more polished distro." Elsewhere, it is reported that Ubuntu's new Linux version sports a debugging tool.

"In the beginning... open source was pure and unadulterated. Over time, the idea of community-build software that is free and unfettered by sticky licensing terms and fees caught on with IT buyers, and the disruption of the old order began. Now, open source (Linux, Eclipse, Java, etc.) is mainstream, with many companies giving away valuable software for free and looking to gain profits from their largess."

"Brent has put the Syllable User's Bible (SUB) back online, hosted on Syllable.org. Feel free to check it out, and email Brent with improvement suggestions. SUB's design hasn't been integrated into the main Syllable.org design yet."

Version 9.2 of the Opera web browser has been released. "Opera 9.2 is not only an important update with bug fixes and the new Speed Dial functionality, it's also a milestone in spreading Opera to new users around the world: Opera 9.2 for Windows ships with 31 languages." Download it from the download page.

"We often wonder if we are getting the most out of our computers, especially as we sit drumming our fingers waiting for some process to begin or end. But what can you do get the system into shape and keep it that way? " Here's what you need to know about Vista's performance tools, the new Windows Experience Index, Problem and Health Reports, and routine maintenance (including Disk Cleanup and Defragmenter), to get your OS humming along.

"Anyone else remember when Microsoft used to talk about making Windows Vista (or Longhorn, as it was then known) a fast-booting operating system. Fast, as in cold boots that were 50 percent faster than those possible with Windows XP? Something obviously went awry. As Computerworld is reporting, a number of Vista users are none too happy about Vista boot-up times. Some are questioning whether Microsoft is advocating that users just put Vista into sleep mode, as opposed to shutting down systems on a daily basis, to mask the sluggish boot up."

"Version 5 of Red Hat's Red Hat Enterprise Linux operating system hit the streets last month, complete with a truckload of updated open-source components and brand-new support for server virtualization - 0courtesy of the Xen hypervisor project. eWEEK Labs tested RHEL 5 with a particular focus on its new virtualization features. While we think that Red Hat is off to a good start with its Xen implementation, companies in search of an out-of-the-box server virtualization solution shouldn't expect it from RHEL 5."

Dell has stopped selling its Axim line of handhelds and is not planning a new product in the category, the computer maker said on Monday. "The Axim X51 family is no longer being offered, and we have no plans for a follow-on product at this time," Dell spokeswoman Anne Camden said in an email. Camden noted that the company does sell handhelds from other makers on its website, including GPS devices and smartphones.

"Red Hat has recently shared with the world the first ISO images of the system that is supposed to be installed on the OLPC laptops. I suddenly felt an irresistible temptation. I downloaded 291 MB ISO, burned it on a CD and started testing. Here is what I got."