winblows Vista - Bitlocker, Anyone played around with it?

So any of you guys/gals played about with Microsofts "Bit Locker" security software? It seems to have a loophole that totalyl comprimises its use - basically if the machine is put into sleepmode its possible to wake up the machine and use the machine stright away bypassing BitLockers encryption. Crazy really. So if your going to steal a laptop with bit locker make sure the user has logged in and place it into sleep mode before you steal it - hey prestro you've bypassed the security.

Just incase your not sure what BitLocker is - its the Drive Encryption software thats bundled with Vista Ultimate Edition (I think it comes with the Enterprise edition too). It encrypts the whole drive using AES (Advanced Encryption Standard) with key sizes being 128 or 256 bits.