HP Making webOS Open Source
Several readers sent word of HP's announcement that the company will be contributing webOS to the open source community. According to HP's press release, they will continue to be active in webOS's development, and one of their goals will be to avoid fragmentation. ENYO, the application framework for webOS, will also go open source in the near future.
From an economics perspective, this is probably the best return on investment they will get: goodwill.
So HP has decided that they want to continue using and directing webOS, but they don't want to pay for its development.
http://alternatives.rzero.com/
Or just write it in C++ with Qt. Get far better speed, vast portability, and no need to use a shitty language like Javascript.