So come to find out CS5 won't be available until most likely late fall
this is just a "launch" ie a preview of what you will be able to buy in a few months
"Before you get too excited, let’s get one thing straight: This is the unveiling, or basically an introduction to the public. Adobe is going so far as to call it a “launch” day but you will not be able to buy the software that day. Adobe has not announced a release day yet, but October 2010 makes sense to me (just a guess). This would position Adobe for a strong end to the calendar year, it would give them sufficient time to work on it after the April introduction, and it lines up exactly two years after the release of CS4. That said September/November would make just as much sense, and some rumors are putting the date earlier, noting an 18 month release cycle."