Apple is set to announce a new, free version of MobileMe next month, according to a trusted iLounge source. The source, who works for a major educational institution, claims the school’s supplier has said the current version of MobileMe is no longer available, and that Apple is suggesting new students sign up for the 60-day trial to cover the gap between the final MobileMe shipment and the launch of the new version. In addition, the source was…