I have a 17 inch MacBook Pro with 2Gb of RAM and just finished my first tethered shoot with it and my P30 back about a week ago. The previews came up quite quickly when shooting tethered (about 2 seconds) and everything worked like a charm; no hiccups at all while shooting, even when I (twice) accidentally stepped on the FW cable and yaked it out while shooting. Just plugged it back in and kept going.
Batching/post-processing was a different story. It took about 2 hours for it to batch process about 200 P30 RAW files into JPEGs. This was using Capture One, which is now "native" on Intel Macs (I can only imagine how slow it would be under virtualization). The batching speed is therefore less than ideal. I don't know if that's of C1 or the MacBook Pro, but I wouldn't want to be a wedding shooter or high volume shooter of any sort processing thousands of files per shoot using this configuration. The forthcoming Version 4 of C1 is supposed to be much faster -- we'll see.
Anyone out there have any experience with the Macbook Pros and MFD? I'm currently using a dual 1.8 G4 tower with 4 gigs of ram and I'm wondering how the MB Pro's stack up with batching files and regular post-processing. I've shot tethered to an assistant's 1.8 MB Pro with my Valeo 22 and had virtually no issues but I never did open any files with it. James commented that he's had issues shooting tethered with the new laptops and I'm wondering if anyone else has had any issues. My thinking is I'd like to replace my desktop with just the MB Pro to eliminate the clutter and cord farm I have raging in my office. If an Intel MB Pro is as fast as my current setup I'd pull the trigger in a heartbeat.
Apple just released a new version of the MB Pro today btw. Apparently FW 800 is back. Not sure if the FW issues James described have been taken care of.