Mats Mikkel Rummelhoff says:

I’m the most psyched about the improvements to the code panel… custom class completion will make life so much easier. Other than that, the new text framework is a huge improvement, and the .XFL format is also a really, really cool addition.

CS5 seems loaded with lots of small improvements, welcome changes and tweaks. I do get the feeling however that compared to CS3 and CS4, CS5 is a fairly minor update… If you ask me, most of the things shown in Lee’s video could’ve (and should’ve) been implemented through updates to CS4, which is a pretty flawed product. I realize it’s a bit premature to say, but I do feel a bit ripped off. I also question Adobe’s decision to terminate the public beta, in order to rush the release of Flash CS5.