Motorola recently announced the Android 2.2/2.1 schedule for various Android phones. Here is the time-line about when can different regions of the world can expect Eclair on their Motorola Backflip phones.
It is not all good news for everyone as Asia Pacific users might have to wait a little longer, while Europe and Latin America users will not get any Android 2.1 updates.
United States: Upgrade to Android 2.1 (testing in process) planned for late Q3/early Q4 [Update is now out]
Europe: Will not have software upgrades to Android 2.1
Asia-Pacific: Upgrades to Android 2.1 under evaluation
Latin America and Mexico: Will not have software upgrades to Android 2.1
Canada: Upgrade to Android 2.1 under evaluation