With developers being more familiar with Google App Engine's usage, there is some interesting apps coming up.

Just like this one, Simple Sketch App.

In the box above, you could move your mouse to draw picture in it as well as saving it and share the painting with others. It's quite a cool application to play with.

And here's the author's link:

http://d.hatena.ne.jp/technohippy/

The other one that caught my attention is Latrz

This is a application for users to submit articles when they are surfing on the internet, and come back to read them if they got time later, to me it's quite a useful app, cause i always can't find the articles when i really want to read them. So thanks a lot!