Patch what patch?
I had no idea there was an "official" Acer bluetooth patch; at least my attempts at Windows update er I mean AA1 update (whatever it's called) have never offered it to me.
I have got about three-quarters way through the incredibly faffy procedure in this article and had some success using one or both of two different "dollar fifty" bluetooth dongles from dealextreme.com
Bluetooth on my AA1 does actually "work" in the sense that it can scan around the area and get responses from local devices. Sadly any attempt at a working ppp connection via my phone seems doomed; "no route to host" from the l2ping seems to be the scuppering factor.
Also the very presence of the netbook in the same room now seems to send a previously working Nokia PC Suite on an unrelated machine into a dither.
I have to say that if you get a 3G Huawei E160G dongle for the AA1 it just plugs straight in and works (via the inbuilt Mobile Partner software) so actually I wish I'd done that now instead of rashly buying a 3G phone.