Sorry Boz, forgot to tell everyone how it went.
It was great. Kevin, our sound guy, used protools to mix, and we plugged straight into the laptop. The sound was great, and he could even plug his head phones into a jack to get great feedback. It was really quick too! He had a fancy Mac with a great battery life, so he could just make a session and put the computer on standby. He flicks it open and it's instantly ready. Very reliable.
For indoors, we'd plug it in and it'd charge... we even used it as a prop in the bar scene, as the bartender's computer in the wide shot. For an outdoor scene, Kevin ran the laptop on battery and kept it close. There were some sequences where Jenn had to hold the laptop and travel with Kevin. All in all, it went very smoothly.
I highly recommend it. Try and hire a sound guy who has protools, a laptop, and preferably an assortment of mics.
Kevin did the synching as well, plus the final mixing. I think on most indie shoots, having the boom guy be the sound editor works really well. Sound guys are always pretty cool.... a little wired at times, but in a good way nontheless.