The FCC is always a wealth of rumor-y information. Today's no exception, they've posted documents detailing Treo 750 approval.
It used to be that the FCC leaked like a sieve. Things are different now - one of the PDFs at the FCC site is a document from Palm explicitly asking that certain other submitted documents be kept confidential for 45 days. Theoretically, I suppose that could mean that Palm intended for these (relatively non-interesting) documents to get out. Theoretically, that could also mean we're in the beginning of a 45 day time period before they announce the Treo 750's availability in the US.
Theoretically, it'll be awesome when it is finally officially here.