I have a mobile audio kit that I've been vary happy with for years. All recording went to my old MBP. I've wanted to dump it as it's bulky and awkward and heavy. With Auria now I only need a USB multiple I/O and I can dump the MBP. It'll be faster and easier to deal with. I've been recording and mixing with it this weekend, trying to master it. It's easy to learn, the owners manual is a really nice tutorial, and super easy to use and edit / mix with.
If you're shooting DSLR and have an iPad, use it to record your audio! Great I/O's with superior filters & converters, and the iPad Camera Kit gives you USB connectivity.
Not to mention there's a cheap in-app add on so Auria will play a video clip along with your recording / mixing. Very nice app. 48 tracks, fully professional quality, I'm blown away.
http://www.auriaapp.com/
Not to mention the latest update to Avid Studio for the iPad. That's looking like it'll blow iMovie away in another 6-8 months if they keep growing it.