Re: No need to sign up with coinbase
Yes, DELL could do that when suppliers start accepting bitcoin too. That is why accepting bitcoin is such a big deal for a company like DELL. One of the reasons people are afraid to get bitcoins is the high volatility of the exchange rate. DELL does not necessarily improve that: they immediately sell the bitcoins they receive, but as the network of accepting providers becomes bigger the need for that will diminish.
People still would not need to sign up with coinbase though, which was my original point.