Some more info:
A few other notes of interest have been collected on the internet. This includes:
- USB headphone/headset will work on the iPad through the connection kit. Skype phone call was tested and "the quality was just terrific" - Tidbits
- USB keyboards can be used - TUAW
- iLounge had some early notes which revealed that the iPad emails pictures out at 2048x1536 resolution rather than the iPhone's 800x600 resolution, but if you copy/paste the images into an email, you can get full resolution images emailed out.
- Once you connect to your Mac, iPhoto brings in full resolution images with EXIF information intact. - iLounge
Nice find about the headset and keyboard. I'm sure more will be discovered and more apps will take advantage!
Also with an SD card reader that give opportunity for sideload exploits for things like old school emulators without jailbreak.