The Mac App Store is a really good idea but why is it separated from the other App stores ? (iPad, iPod and iPhone) ? I wish all the stores where together and that Apps would just list compatibility with the different devices (Macs, iPod, iPhone and iPad).
Most tutorial free or purchased software is for Windows, XP, Vista. Please make an effort to make the existing or new software available on Macintosh OS
SUGGESTION: work with Audrey Grant and load her books with EXERCISES on Apple friendly software.