louiscburr, I'm in no way trying to question what you wrote, but just for the record, someone posted this today over at xda's forum:
"Got this message this morning:
Good morning Martijn, The tattoo does not get updated to 2.1, I've just been following this prompted whether this now confirmed and I have had a positive response. Tattoo gets no 2.1. Sincerely Inge v G HTC "
Android 2.1 Confirmed - Page 19 - xda-developers