Mycelium 2.0 for testnet ALPHA 6 released to the play store, and should be available in an hour or two.

A lot has changed since the Alpha 4 release. Some of it:
 - We are now based on BIP39 word lists for backup / restore. You only need one backup forever, and no more encrypted PDF backups
 - When you install Mycelium for the first time you are asked whether you want to create a new wallet or restore a backup (Restore is Trezor + wallet32 compatible (BIP39 + BIP44)). Your first account will be an HD account
 - When you do an upgrade from version 1.x a new master seed and the first HD account is automatically created
 - We nodge users to make a backup by showing a "Secure My Funds" button if no backup has been made yet + if one of the HD accounts have funds.
 - We nodge users to move funds away from 'legacy' accounts by showing a "Secure My Funds" button if a legacy account has funds.

Note: when upgrading from Alpha 3 to Alpha 6 the account names will disappear. Once we hit production the 1.x names will be properly be migrated from your classic keys/addresses to accounts.

If you are a translator you'll get a notification later today for all the new HD strings. Let's get this baby out.