The closest competitor to OneApp appears to be Opera Mini (<a href="http://www.opera.com/mini/" rel="nofollow">http://www.opera.com/mini/</a>) which is a full web browser for the same kind of small cheap cellphones which OneApp targets. Opera Mini is also client-server and pre-processes and compresses web pages on the server side, amongst other things, before the client sees them. The major difference would seem to be that Opera Mini provides access to the whole web, whereas OneApp is more of a walled garden, just running the 'apps' written for it's mini-platform.