Using the Fedora Rawhide kernel RPM "2.6.27-0.238.rc2.fc10.i686" (kernel-2.6.27-0.238.rc2.fc10.i686), I'm seeing suspend to ram failures. The suspend seems to go OK, but then I just get endless:
usb 5-1: uhci_result_common: failed with status 440000
messages, with occasional flickers of something else being printed (perhaps). The machine is otherwise unresponsive.