^^ not really, the issues are mostly in the mobile series parts. i do not think desktop parts would be impacted that much. Anyways the 8800 series was launched in late 2006, so if it ould really have been this bad for the desktop parts we would have known from fellow users in TE at least. Laptop parts get delivered to the vendors where they sit for sometime before being integrated with the laptops and then sold. So their lives start relatively later than the desktop parts which find a home quicker. So if desktop parts did have problems of that magnitude, we should surely have heard about that by now. Worry mostly for people with laptops with Nvidia M series, and thing to watch out for people who are thinking of getting a laptop soon.
One might argue that these are same chips. That is correct, but not all depends on the chip. M series cards have to be designed a lot slimmer and trimmer than the desktop monsters due to space constraints. The main place of compromise comes to cooling mechanisms, so they have a lot more heating issues that their desktop kins, which just might be one of the main reasons of failure.