Oracle Application Express 4.0 (APEX 4.0) Early Adopter
Just about everyone has already blogged about it, but APEX 4.0 EA is available now.
What else is there to say that has not already been said? Not much probably, but I'll point out one new feature: APEX 4.0 is not available in Internet Explorer. I have it on good authority that this feature will only be in the beta and will not make it into the production release--we can hope, though. (Thanks to Neelesh Shah for pointing out this new feature.)
Also, check out the new SQL Developer features:
And, of course, Patrick's sample plugin: