CNN – Right now, Bitcoin is a hard sell for people who are accustomed to old-fashioned cash or credit. The stateless, digital currency can’t shake off the image that it’s unstable, unproven and largely still an experiment. Recent news doesn’t help. Last week, Russia’s top prosecutor declared that Bitcoin and all anonymous payment systems are illegal. One of the largest Bitcoin exchanges in the world, Mt.Gox, prevented investors from pulling out their bitcoins, citing a technical glitch. Apple yanked the last remaining Bitcoin digital wallet from its app store. And earlier, a Bitcoin exchange CEO was arrested for money laundering….