Several companies have been chasing this holy grail, Asus amongst them. The problem has been that they approached it from the wrong end: they designed a desktop unit that had to be able to function with the mobile constraints of a tablet, rather than a tablet that can scale up to function as a more powerful and flexible desktop unit. Hence the love for Windows 7 which is totally unsuited to a mobile device. Enter Google Chrome, which happily works on both because it is a lean OS, relying on the heavy lifting to be done on the cloud. Microsoft is thinking in the same direction. Apple is slower to catch on because its focus is on a different type of on-line service at the moment, but when it realises that all it needs to do is shift that focus a bit... Competitors beware. We could have the best if all worlds. Thin clients of office drones running a Google Chrome-type OS with a local cloud/on-line service infrastructure being managed on more elaborate hardware by the company's IT department.