iOS runs fast native Apps, while Android runs in a VM. This makes iOS faster and/or more battery efficient. This speed/performance attracts users. On the other

iOS runs fast native Apps, while Android runs in a VM. This makes iOS faster and/or more battery efficient. This speed/performance attracts users. On the other hand iOS is a closed system while Android is open. An open system attracts developers. Ubuntu has potentially both technical advantages. It will have fast native Apps, it already has a Ubuntu store, it has Ubuntu One (similar to Dropbox / Skydrive) and it will be more open than either of iOS or Android. And Ubuntu has proven that they can deliver, with Unity in the desktop. I'm using it right now (inside a VM running on Windows 7) and honestly is the best Linux I have ever used both in the desktop and as a server in AWS. The only reason I can think for a Ubuntu phone failure is total lack of carriers interested in the product (I think more than one chinese company will jump with full force to Ubuntu, remember the so called Alibaba OS), or a half assed launch/support (again it would be the carriers fault, and it would be only relevant in USA). If I had spare money I would propose a longbet against you ^_^