So long Vista, we hardly knew ye. According to Techarp, Microsoft will be working with PC makers to offer a cheap and easy upgrade path for people who buy Vista machines after July 1st.
A similar program was initiated just before the transition from XP to Vista to prevent a slowdown in sales, so it looks like the mid-2009 target for WIndows 7 is still on track. [Techarp via Sillcon Alley Insider]