I've been having decent luck with my T500 after resuming from hibernate under Win7.  I use hibernate 95% of the time and suspend happens when the machine has been idle for long periods.  I've never had the laptop not come back from a resume.
What I have seen happen is if I closed the lid and the laptop was set to go into suspend and if I open the lid quickly while it's trying to suspend, the machine hangs with a black screen. I've disabled the suspend on lid close and no longer have issues.
			
			What I have seen happen is if I closed the lid and the laptop was set to go into suspend and if I open the lid quickly while it's trying to suspend, the machine hangs with a black screen. I've disabled the suspend on lid close and no longer have issues.
 
				 
 
		 
 
		 
 
		 
 
		