Certainly, there were better entry points, particularly around July 2012 when it reached the low of $1.69 (don't know what you're talking about martinmc78, when were they around a dollar in February 2011?), but I would say there is still upside to go. If you want to play it safe, then wait until after the Q4 2012 results are release in January 2013. However, your upside may be limited by then.
Definitely read, read, and read some more. Figure out your strategy that works for your goals and risk appetite. But yes, eventually, you just need to make the plunge. You will lose money on some trades, you will make some money on others. But the trick is stick to your strategy, so long as your strategy is a sound one. I suggest ignoring analyst recommendations, a lot of them are late. Don't pay attention to price targets, figure out what the company is worth in your mind, then from there, figure out how much upside is left. Start small until you develop confidence in your abilities.
Personally, I feel that NOK has more upside left it in. Even with bankruptcy fears, NOK was sitting at $5 USD earlier this year. I think the bankruptcy fears have largely been addressed, so if NOK shows solid progress on that front, I believe we'll go over $5 easy. That's a roughly 15-20% gain from here. There is another thread RE Nokia's stock that some of you may be interested in, as well as a thread about the Chinese mobile market.
http://forums.windowscentral.com/nokia-lumia-920/208239-impact-china-mobile-platform-war.html
http://forums.windowscentral.com/off-topic-lounge/206925-nokia-stock.html