FWIW, I have this:
connected to my 2011 Mini Server that I use as a workstation
and general use computer and my iPhone 4S works just
fine with iTunes 10.7 and OSX 10.8.2. It is a 7 port hub however.
Make sure you are using a powered hub (one with its own power
Your Belkin is one I've already tried...but it it didn't support charging of the iPad (read the manufacturer notes at the bottome of this page in the Apple Store where they sell it: http://store.apple.com/us/product/H6397VC/A)(
But I now have an iPad mini which has the same charger as the iPhone, so perhaps I should try this again as it might work with the mini.