Chart looks great at the moment. MACD crossover is a strong buy signal, RSI, TRIX and MACD all have plenty of room to run.
Chart needs to sustain above 20SMA for a week or so to establish the bullish trend, but 1.90 sounds like a decent price target for anybody who bought this week. I think its smart to set your price target below $2, as it sounds like too many people have that as their target and there will be lots of selling pressure once it hits that $2 mark.
Either way, SIRI has a lot of room to grow over the long term. Anybody willing to hold for at least a year or two should be able to see gains up from 100%. IN MY OPINION :-)