actuaually he wants to prolonge his carrier... and wants to play IPL for next 4-5 yrs... thats why this retirement, as 5 day test cricket takes a toll on d body, specially on a wicketkeeper :s
Also, in all likelihood... he's not 33 yrs old... but abt 36 or 37. :k
And wud have shown his wrong age on birth certificate for playing under 19 or under 21.
Lots of cricketers do that