I dunno how long they've been working this because I don't follow intel graphics too much. I hope AMD speeds up their game though nontheless.
Either that or Intel can release some performance competitive hardware. Though I like AMD as a company; so I hope they succeed in the Linux community.
This is truly a remarkable event and will spawn other Open Source developement and encourage developers to produce some very interesting
drivers and graphics that up until now are only satisfactory.
Intel is raising the bar for graphic card makers.