Sooner than you think...
All cards coming from MBNA (and that includes affinity cards such as Amazon Card, AA Card, etc.) are now RFID enabled, under the Mastercard PayPass system (technically identical to Visa PayWave).
Mine now resides in its own little cooking foil pouch in my wallet. Durable, easy to make, cheap to replace, and no sucker is going to vacuum up my card details in a walk-by RFID scan through it.
Although I'm sure the kiosk staff at my local petrol station think I'm crackers... the hat made out of the same stuff to protect me from other folks' mobile phones might be a factor... :-)