Following the changes made by VMware to the vSphere 5 vRAM allocation sizes, I've released version 0.6 of my vSphere License Calculator to reflect the new vRAM allocations.
Please download version 0.6 and let me know if you discover any further problems with the calculator.
*The vRAM Entitlement for vSphere Enterprise has now been corrected to 64GB*
The new version of tha calculator can be found here