Ok, I've been doing a lot of artwork on my MacBook lately, and I'd love to have something on my Touch to work with when I don't have my MB handy. I need a few basic things; - Lots of color options - preferably a photoshop styled color wheel with full range. - Shape tools. Just rectangles and circles. I often use them as bases. - A fill tool. - A smear tool. - Photo saving. Are there any free painting apps in the app store that will fit the bill? If not, what paid ones should I look at?