Not might...they are good in SLI

Think about it if a GTX460 OCed = 5850/470, then 2 of those in SLI will smack a 5970 upside down for $450, a good $250 cheaper.
384 SP part, if maintains the same remarkable overclocking, would be the best card of 2010, if released < $270.
You know if you were ATI's management right now, you would be preparing a full SI refresh for the fall of 2010, dropping 5850 to $199, 5870 to $299 and SI high end parts at $399 and $499 against GTX485 and probably GTX490 when it comes. Just like that and you have regained the market lead from NV in all price segments! hehe can't wait for renewed competition. And then when NV responds, well Q2 2011 and you have NI waiting

oops