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I would like to point out that while I agree that a cellphone is over 99% personal, it is that what makes control of the remaining 1% extremely important.
Every now and people are forced to lend their device to a coworker/little-daughter/significant-other, for a phone call, or a quick check of the internet, or a pacifying game of Plants vs. Zombies or Cut the Rope. I don't doubt that your own device is squeaky clean of anything questionable, but maybe I would not like to spoil a surprise present to my significant other by being caught browsing jewellery pages, or letting my 6-year old nephew read a stored watsapp chat revealing that Santa is just a fiction.
Even if your moral fiber can defy Mother Theresa's, you might not want to let your little son change the backgrounds, shift the icons, delete your pics or read your email.
I find it hard to accept that it has already taken so long to offer a guest mode in every smartphone. Don't Apple engineers have any concept of privacy? Now, about Google engineers... I won't bother ask the same question.
Edited 2012-08-06 09:58 UTC
Sharing of mobile phones is quite common in some areas, existing multi-user capabilities of phones are already widely used.
For example http://en.wikipedia.org/wiki/Mobile_phone#Use_of_mobile_phones
And if you'd go to conversations.nokia.com and search for (IIRC) Nokia 1280 for example (not the only one, there are "higher" models like that; or search some keywords around mobile phones and developing world, emerging markets, the next billion), you'd see that many phones can have few separate accounts for contacts, messages, call management timers and counters - specifically to be shared.
Yes, it's not exactly about what we think of as smartphones, but a) what is a smartphone, anyway? (inexpensive, sub-40€ without contract, S40 phones also have apps, are also used for browsing: http://www.opera.com/smw/2011/11/ ) b) Android will trickle down to price brackets in question (and there are still cultural factors)
Edited 2012-08-12 00:19 UTC





Member since:
2005-07-10
I'm sure some will say they absolutely need this.
I just don't think it's very useful at all. A phone is inherently "single-user". You don't share a smartphone with many people. As for the whole "work/play" thing ... you don't need multi-user for that. Decently implemented profiles could take care of that.
I just hope they don't start using ACLs on the filesystem (even if it is just POSIX ACLs) because i see many an opportunity for bugs and weird behavior.