I have done a bit of numbers crunching...Assuming that RIM makes $1/s this year ( probably wishfull thinking!) and the growth in next 5 years is 20%/y ( the high end of ANAL-ists estimate) and the discount rate is average growth of S&P i.e. 11% RIM's optimistic value is between 50-60 $/s.
This assumes everything goes well for RIM. Now, if we factor in: competition, lawsuits, general market decline, terror and so on, the end for RIM may be much worse. Of course, this is just an opinion of a guy who shorted RIM to the "brim" so to speak.
Good investing everybody!
Bapak