Attention all nonogram developers – CrossPix Magic Express Review

Let's standardize. You all seem to have "pens" on the side of the screen which are essentially "erase", "mark", and "unmark". Please get rid of them, and make the "pen" just cycle through the three choices. For multi-colored puzzles, touching a color on the palette should select it. Also, implement "touch and drag" to color a region. Get organized, guys. Crap, every one of you implements a different scheme.
Review by Baywatch Bill on CrossPix Magic Express.