I had around five cards opened (two for email, two browsers, and one for the app catalog). I purchased Slice It and tried to run it. I kept selecting the options so I could play it (or rather so my daughter could play it) and it just kept closing and I had to open the program again. I finally swiped away all of my open cards and then I was finally able to play it. I've hit the too many cards error before so I have to wonder if 1GB RAM is enough or should there be a Homebrew patch to reallocate the memory so this doesn't happen (thanks Homebrew!).