Everyone needs to do their own homework and come up with their own valuation. At this end of town you need a hefty margin of safety given the amount of uncertainty for early stage growth companies and a considered portfolio allocation because as we have seen—the share price can jump around by a crapload so you don't want to get rocked off the boat because you've peed your pants 'cause you loaded up on too much.
I know Commsec were allowing people to buy ICQ using margin loans, and there may have been a few other financial companies doing the same. People who loaded up using that would easily have become forced sellers with the recent fall, and would have driven the share price down even further as the margin calls came. Forced sellers after the share price has already fallen. So bad.
ICQ Price at posting:
44.0¢ Sentiment: Buy Disclosure: Held