Honestly, if Google wanted to get into BTC they would have no trouble doing so. They have the tech, the code monkeys and the financial backing. IF they were going to, they would have done it by now. Pretty sure they could develop chips with 100th/s capability, and run entire server farms of it. They make too much damn money the way it is. And another thing is the current legality of btc to usd, pretty sure they don't want to get their fingers dirty until all the mud is washed away.
This is exactly it. Especially when it comes to the legality of bitcoin to usd transactions. If bitcoins equals money and money equals a source of income, then technically, living in the United States at least, it should be taxed. The problem is is that the government doesn't control bitcoin so thousands and thousands of people get away with profiting from a virtual currency. If a company like google decided they wanted to start capitalizing on bitcoin and were profiting in the tens of millions off of it, the government would see those profit reports and want their taxable share of that income. Then it would probably slippery slope it's way towards bitcoins becoming at least partially regulated by the government in the USA at least..