Obi-Wan *again* seems like a manipulative prick because he knew who Leia was when he saw the original hologram projection of R2
Yoda does mention waiting till the time is right or something to the effect in RotS, so maybe ANH Ben was just keeping from overwhelming Luke. maybe..
BUT..
He also doesn't recognize the two droids, granted we've been shown similar R2 units and Protocol Droids in TPM as well as Empire.. so it's a hard call. Unless Jedi Senility is a force power.
I must say I've enjoyed myself for hours here since I've joined and gotten over myself

Many thanks all around!
And MagFan, RESPECT! and many thanks for the breath of fresh air!
They are the most perfect PSP companions!
I shall sit here patiently waiting for the next edit[s]!
I'm not moving.. sitting right... here.. in this spot.. waiting..
oh yeah, and i think that 'Maternity Droid' needs a better soothing mantra then 'Oooba Ooooba'
again.. waiting.. =)