That may be the case for the Pro, but I bought a Belkin hub yesterday and my initial impressions were that I prefer it without the added hassle of the hub - problem being that I was tired and irritable after a crap day at work. I plan to spend more time switching between the two on the weekend, but I really have to ask if we are just making things harder than they need to be - suddenly something like the QLS QA-350, limited though it may be in capacity terms, would solve a lot of the mucking about that we go through with things like the iPad and various computer-based solutions.
To me it seems like a QLS QA-350 would actually complicate things. I would have to change from ALAC to WAV. That takes more space, but then I have to have to listen off of of SD cards, no hard drives so it's a lot more mucking about for an iTunes guy. And iTunes would not be used for playback, just for converting to WAV and exporting to SD cards? Yeah right, that's not going to happen.