This program looks very promising. As it gets more features and improves it will become the best way for pixel drawing.

At the moment though, the only reason that i use this rather than photoshop is because photoshop can only do vector lines, instead of just using normal pixels.
Pixen's interface is less clogged up though (compared to photoshop), which enables me to use more of the screen usefully.

Keep up the good work!