Right, I too bought a 1010 then realised afterwards that it was a magic trick to upgrade the ram.
I contacted our Dell account manager with the part number given on here for the 1.6ghz & 2GB daughterboard along with my service tag and requested a price.
He couldn't order it, it would need to come through from Tech support via a purchase order on our account, but the price was
1 RoHS:Yes,ASSY,PWA,SYSM,Z530,1.6,2G,1010
GBP
Subtotal 91.92
Freight 0.00
VAT £ 16.09
Total 108.01
So that is £108.01GBP including taxes, but no shipping listed for most grunty of the upgrades for the 1010.
Is it worth it.