Main Entry: vis·ta 
Pronunciation: 'vis-t&
Function: noun
Etymology: Italian, sight, from visto, past participle of vedere to see, from Latin vidEre -- more at WIT
1 : a distant view through or along an avenue or opening : PROSPECT
2 : an extensive mental view (as over a stretch of time or a series of events)
Sorry, I think its a lame name. I think WindowsExtreme or Windows++ would have been better choices, but I am a technical guy, not a marketer.