Electronista sends out warning that HTCSense.com will wipe all current data after April 30th, 2012 because HTC plans major changes to the service. All users who have stored calendars, call history, contacts, Footprints travel info and messages at HTCSense are recommended to download a backup file before the end of next month.
Those who wanted phone finding and cloud backup apps were steered towards third-party apps. HTC didn't say when the HTCSense website would have its new services, or which if any existing features would persist in the new version.
HTC developed the site as a rough counterpart to both Google's usual cloud services for Android owners and as a parallel to Apple's MobileMe before it transformed into iCloud. The switchover is likely necessary as Sense 4.0 on Android phones like the One X, One S, and One V is considerably stripped back to remove clutter and improve the overall experience. While faster and leaner, it has also meant dropping some of the services that HTC had attached to Sense over the years.