It sure seems absurd, but currently the market is paying 16 x sales for RIMM. With '08 and '09 sales estimates of $5.8 and $8.4 billion respectively at current rates the market cap could be $92 bil. in '08 and $134 bil by '09.
Another, more conservative way to look at is that the market is already booking Feb. '08 sales estimates as a given. i.e roughly 10.8 x sales. Now apply 10.8 x '09 estimates of $8.4 billion and you get a market cap of around $90 billion.....about 50% above current prices. I believe as long as the market stays positive and I think it will because of the '08 election and China/Olympics we will easily see RIMM in the $150-175 area sooner than you think.