For those who would looking for specific downloads of the PowerPivot for Excel 2010 RTM bits , here they are:
Important : If you install the 32-bit version of Excel 2010, you must use the 32-bit version of PowerPivot. If you install the 64-bit version of Excel 2010, you must use the 64-bit version of PowerPivot.
PowerPivot for Microsoft® Excel X86 Executable (32 bit) (or here: http://go.microsoft.com/fwlink/?LinkId=186058&clcid=0×409)
PowerPivot for Microsoft® Excel X64 Executable (64 bit) (or here: http://go.microsoft.com/fwlink/?LinkId=186059&clcid=0×409)
Enjoy!


Just wannt to test it
Derry: Go for it.
Another download location is here: http://powerpivot.com
There is also a download page on http://download.microsoft.com (search for PowerPivot) and you will see this link:
http://www.microsoft.com/downloads/en/details.aspx?FamilyID=e081c894-e4ab-42df-8c87-4b99c1f3c49b
Hope that helps.
_-_-_ Dave
[...] notes that PowerPivot for Excel 2010 is now available as a download as well as some great Launch Day testimonials for [...]