Amex just announced a 50% transfer bonus to Avios until May 31, 2012. This can be an amazing deal for certain redemptions (short haul, within the Americas, mid-haul, etc). I did a write up on my blog with screenshots of some of my favorite redemptions. I like how long this promo runs- no need to rush and transfer. Hopefully this forces Chase to step it up and start offering some bonuses!