For a while I believe that there was a push by twitter for it to be "twittered" but it's a made up word so we can craft our own tenses. To most english speakers tweet having a past tense of twat is perfectly reasonable (unless you're british but enjoy how quickly you speeded over this comment). Companies use BS word creation as a way to get around trademark collision and validity concerns but I strongly dislike the habit of making new words up so you can get an easy registration. I think it's perfectly legitimate to counter their BS with our own BS shaming them over their easy out and I'd encourage other folks to follow in suit. So, until the end of time, the name of that console is the X-Bone.
When you're naming a thing you should be careful and deliberate in your process - generally coincidences will work against you, though you might get lucky and pull a Kit-Kat[1].
