It's a solid name, one that comes from Norse mythology. Not only that, but it continues Aston's use of names starting with "V" ( Vantage, Virage, Vulcan, et al). It's also way easier to say than the serial number that was the old name.
We're looking forward to getting the full official specs, too. So far, we know it will have a V12, and the company is aiming for a one horsepower to one kilogram power-to-weight ratio, similar to that of the Koenigsegg One:1. We've also heard that Aston will sell just 175 cars, with each running about $3 million.