you aren't banned then, maybe penalized somehow. Banned sites have no cache or indexed pages at all.
site:www.domain.com = no results since 28 jul link:www.domain.com = no results since 28 jul cache:www.domain.com = 11 aug cache
That doesn't seem unreasonable, since the googlebots have no way of knowing when or whether a penalty might be lifted. If a penalty were lifted, Google would obviously want to have up-to-date data in its index.
My site still gets spidered a little bit, but there is a big difference between before and after 28 Jul. It alsmost looks like it gets 2-3 pages deep before it all of a sudden remembers that I am banned ;o)