If you just can't wait: The Touch Diamond is officially on sale now at Devicewire UK. It's £463.99 including VAT, and it's the unlocked UK version of the sweet, sweet handset.
You can also get the HTC Touch Diamond localy from USA and Canada from the following sites:
USA http://www.expansys-usa.com/p.aspx?i=168017
Canadahttp://www.expansys.ca/d.aspx?i=168017http://www.puremobile.ca/HTC/HTC-Touch-Diamond-Black-GSM-Phone/http://www.timtechs.ca/sim_free_htc_p3700_touch_diamond_prd335.html