Glad you like Maily! We're planning to develop an android version in the coming months.

Another +1 for non-iPad application. Kids love sharing information, but even young reading kids can't type well.

I'd see as much value in HTML5 in-browser app as in Android tablet app.

Yes, a browser version, even without the drawing stuff, would be great. A walled garden that I can let my kids use while they get used to that big old outside world. Not trying to over-protect, but expose gently.