Here are my quick thought on the first three presenters. I will add new posts for the rest.

ArtsApp: online media application management for arts students. Really cool idea that you can check out at artsapp.com. I see a ton of uses or helping many schools application processes.

Relicloud: a cloud hosting service from visi. Launches Monday and looks decent.

Pedalbrain: super cool integrated iPhone accescories and app that turn the iPhone into an Amazing bike computer. One of the first really cool hardware addons to the iPhone I have seen.