Apple released the iPhone OS 3.2 SDK to those paying the premium for the iPhone developer program. This version is the first and only version to support the iPad before it's big launch this weekend. There aren't any other hugely impressive features at this stage, but the new SDK does offer new gesture controls which weren't found in earlier versions. Unfortunately, if you aren't a paying member of the Apple Developer Program, then you won't be recieving this one for a little while yet.
More info: iPhone Dev Center
Also, Brightcove announced that they’ll be bringing HTML5 video through H.264 for their partners to seamlessly deliver video content to the iPhone, iPod Touch, and the iPad. Their largest partners, The New York Times and Time Magazine, are reported to already be on board to deliver video content to the aforementioned devices. Brightcove's solution will solve the "knowledge gaps, technical limitations, and additional development costs" that organizations will face when trying to deliver video and other rich media to iPhone OS users. Their current platform features automatic device detection, native HTML5 player templates, and optimized H.264 transcoding.