I would totally use this! I already access the EF site on my phone, though it's not as quick to do. I've even placed an order on my phone when I was at work and wanted to get my order in so it would hit the road to my house!
I would love to be able to access/read/post easier to the forums. This would be great for when my schedule doesn't work out for Porn Club discussions, etc.
I would love to be able to do any of the dashboard items in the Reviews section. I probably wouldn't actually write a review on my phone, but to be able to search for and view new available products and accept/decline assignments would be awesome.
I would also like to be able to view wall updates and messages.
That's all I can think of right now. Awesome idea!!