I thought the current model offered was the '07. I know that there is a limited number of the FJs being sold this year (4000 here in Canada, don't know how many in the States) so you may not want to wait for too long if you want a specific model/color. I ordered mine in mid-April and won't get it until the end of September.
I don't anticipate there to be too many problems mechanically because all of the parts and systems have been taken from the 4Runner and the Tacoma which have both been around forever and are both solid, reliable vehicles.
My brother in law picked up his new Tacoma on Friday and I am so jealous, I can't wait for my FJ to come. It's going to kick ass!!