My wife received both a Kindle and a Tablet and Skritter works fine.

I installed the free version of
Hanji Recognizer on both devices
http://nelenkov.blogspot.com/
It is not very accurate BUT
it is handy to practice strokes with
my finger rather than a mouse on
the desktop AND it is better than practicing on paper and using up a lot of paper.

I use http://www.nciku.com/ on the desktop to stroke characters for lookup and it is far more accurate (forgiving) than the Android app.

I will most likely be unsubscribing from Skritter at the end of the month because I am retired on a fixed income and even $5 a month is difficult much less $10. But I can always reactivate once or twice a year when I feel like I have gained more confidence.

I have all the Rosetta Stone vocabulary in Google Doc spreadsheets in order of frequency so I can use that together with free Android app to practice.

I considered the Android App from nciku.com but I read that it takes something like 3 gig which is a lot to take up on my wife's tablet.

Thanks for your help and suggestions in the past!

The nciku Android app is about 100MB.
I'll make sure our app description is up-to-date.
Thanks for the heads up.