On pages 16-18 of iPad for Digital Photographers, I talk about uploading images wirelessly via the Eye-Fi card. Even though the system worked, I didn't find it as elegant as with the Toshiba FlashAir card that I wrote about on pages 18-21.
The folks at Eye-Fi must have felt the same way. They've just released the mobi+WiFi card that creates its own access point, like the Toshiba FlashAir. The mobi card talks directly to the Eye-Fi iOS app on your iPad. The mobi has an advantage over FlashAir in that it's available with a 16 GB capacity as well as an 8 GB model. It's also rated a faster class 10 for speed.
I have a 16 GB model ordered, and I'll report on its performance once I have a chance to test it.