Why Android 4.2 phones won't have multi-user login? Hint: Nokia holds the patent Android 4.2 came with a new multi-user login feature, which allows you to logoff your important stuff, and go in the tablet with restricted access when you are handing it to your kid, for example. The option is only available on the Nexus 10 and 7 tablets, though, not on the Nexus 4 handset. "Available only on tablets," advises Google in the feature description, and leaves it at that.
This omission has certainly nothing to do with software engineering prowess, of which Google has plenty, but rather something more convoluted, in the form of a Nokia patent filed long time ago, which has booked the multi-user feature for its own phones.
The patent, called "multi-user mobile telephone", was filed way back in May of 2005, and contains the following:
A mobile telephone is designed to be used by several different end-users at
different times. A first end-user can alter the mobile telephone so that it
operates in a manner specific to that first end-user and a subsequent end-user
can alter the mobile telephone so that it operates in a manner specific to that
subsequent end-user; wherein each end-user has only to respond to prompts
displayed on a screen in order to alter the mobile telephone so that it operates
in a manner specific to that end-user...
The present invention therefore moves away from the established assumption
that a mobile telephone is personal to a single end-user and instead readily
allows the mobile telephone to be used by several end-users through appropriate
on-screen prompts. Such a device may be especially relevant to communities where
few individuals can afford the cost of their own personal telephone. More
generally, it is useful for any entity to whom there are benefits from being
able to easily share mobile telephones across multiple end-users (e.g. large
corporation may have a pool of such mobile telephones; any employee can then
simply pick up one of these telephones and be able to use it like a personal
device).
It is hard to argue against such a thorough description, and Windows Phone 8 seems to have taken a good advantage of the fact that Nokia is the patent holder on this one, leveraging its merits best into the Kid's Corner functionality, visualized in our hands-on video below.
LG Nexus 4 to roll with HSPA+42, twice as fast as expected The LG Nexus 4 has a little secret inside. The newest Nexus handset, introduced Monday by Google, has an HSPA+42 radio under the hood. That means it can upload and download data at a peak speed of 42Mbps, twice the speed of the 21Mbps radio that was expected on the phone. The reason this is important is that without LTE connectivity, using HSPA+ is the only way to get 4G speeds on the device.
The LG Nexus 4 supports HSPA speeds as fast as 42Mbps
Even more exciting is the prospect of downloading data faster than Verizon customers using the LTE pipeline belonging to the nation's largest carrier. You might recall that this past June, a test done by PC Magazine found that T-Mobile's HSPA+42 pipeline downloaded data faster than Verizon's LTE service in 11 cities. In other cities, like Miami, T-Mobile's HSPA+42 service nearly beat Verizon's 4G LTE speed.
Not every GSM carrier offers HSPA+42 service, so it's best to find out if you carrier does have the faster pipeline available before you purchase the LG Nexus 4, which will first be on sale from the Google Play Market. Unlocked, the handset can be yours for $299 (8GB) and $349 (16GB) without a contract. And if the lack of LTE connectivity was a deal breaker before, perhaps this news puts the phone back on your radar.
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发表于 1-11-2012 10:15 AM
?因為我剛換gnex而已，如果半年以後跌價再入手就好了...呵呵~
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Android 4.2 came with a new 
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