Xpress Sketch

One thing I like touchscreen cell phones for is the ability to create quick sketches on the go. All you need is a proper software. Apple has taken it to great heights with their iPhone and the app called "Brushes". I don't have an iphone but got myself a Nokia 5800 - may be the worst of the lot :P, but it was great when I got this app "XpressSketch" installed. Good thing about is - it it free and has whole lot of options. Sadly not as good as "Brushes", but still you can work with it. Here are some examples -

The first one is done by my 7 year old nephew and second one by me :)