A Google for "ipad portable battery pack" (as opposed to charger) found me this:
phone Charger | iPhone Charger | iPad Charger | Portable Battery Charger | ZAGGsparq | ZAGG
There will be others like it too.
We've got a reasonable amount of beta testers now and we can't take on any more for a few months anyway. Apple limitations. Hrmpf...
We're not much like FireFox because they have completed all their major features, all the updates are indeed bug fixes and improvements. We're still working on major new features and having parallel development paths is a huge overhead slowing everything down.
Hang in there, 2.7 is going to be a great update with a lot of great new features and huge performance and stability improvements. We're already the most stable app on the Australian market by far and this will make it so much better still. I have not seen it do an un-commanded exit in ages.