The May 2012 vtiger CRM On Demand update introduces the following new features:
Add related module field variables to email templates
A new selection box in the email template creator enables you to include data from related module fields. ( link removed )
New “forecast amount” field
The new “Forecast Amount” field in the opportunities module forecasts the closing value of the opportunity based on the estimated dollar value and probability of closing. ( link removed )
For a full list of enhancements and bug fixes click here