Update: Further investigation reveals mention of a "jogball" like that seen on the handset from the videos. The Dream is said to be in compliance with Bluetooth 2.0 + EDR with this round of testing conducted only on the GSM/GPRS/EDGE 850/1900 and WCDMA 1700 bands -- the latter being T-Mobile's preferred 3G frequency.
Read -- HTC Dream WiFi Certification [Warning: PDF]
Read -- FCC Cell Radios
Read -- FCC WiFi Bluetooth