Why two might still be better than one

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I've been following some recent discussion about mobile virtualization. One article by Alex Williams at ReadWriteWeb caught my attention. I agree that many people carry two smartphones today, one for business and one for personal use. It's true that mobile processors lack virtualization support at the hardware level and manufacturers would have to pre-load this type of functionality. I don't agree that virtualization will drive more downloads of apps onto a single device with dual partitions however. It has more to do with the change in application frameworks rather than optimizing bare metal VMWare hosts in mobile devices.  You wouldn't be able to run Android and iOS4 on the same device anyway.  You might want RIM Blackberry for business and Windows Mobile 7 or WebOS for personal apps, for example. Developers are getting tired of the multi-platform treadmill for keeping various versions of mobile apps up to date.  You create a "rich" web experience app using the latest HTML5 standards first and then wrap native code around it for the downloadable version. More advancement in local cache storage will alleviate the bandwidth demands too. This way your users to get the same look and feel and predictable UI behavior, no matter if it's downloaded from an app store or running in the mobile browser.