I did use the dual boot for some time, but it was a pain...you can't recharge the phone if it's switched off, so if the battery goes to 0% you will need a computer with flasher to reactivate it. Sometimes you have to try several times to boot Android or MeeGo and if you receive a call when using Android they won't hear anything. Meetelegram works somehow, but forget images, voice messages and group chats (you don't read the sender name).