US : XOOM Family Edition, ATRIX 2 and the ATRIX 4G MB860 will get update on Q3 of this year. Meanwhile, older phones like the DEFY, DROID original, DROID X, etc. will remain on Froyo forever.
Canada : RAZR will get the update in Q2 but the ATRIX 4G will remain on Gingerbread.
EMEA region : RAZR and XOOM Wi-Fi will be upgraded in Q2 and the XOOM 2 in Q3. ATRIX update is still being planned whereas the DEFY+ will remain on Gingerbread.
Asia Pacific : RAZR and the XOOM will receive the update in Q2 and the ATRIX 2 and XOOM 2 in Q3. The DEFY, DEFY+ and the older phones will not be upgraded.
Latin America and Mexico : RAZR and XOOM will be upgraded in Q2, ATRIX 2 and XOOM 2 in Q3 and the the update for ATRIX and MILESTONE 3 is still being planned. Again, no update for the DEFY.
Click the source for more info on the schedule.