Product ideas:

Turn kids books into interactive flash apps. Make a software that allows traditional kids book publishers to quickly publish a Flash version of their books by u sing this tool.

Speed calculations - there are a good number of books out there teaching you how to perform speed calculations. Knowing the technique is not enough, you need ample of practice, and making a Flash tool for this purpose can make a great companion tool for the book publishers.

Search Engine for Flash code - Build a client tool where users can easily submit useful code snippets, and a server app where search engine can search based on keyword, topic, etc. There is Napster for music lovers, we need a Napster for programmers.