Visit HPs website and look for their digital projector products and you will find that they are no longer offering what seems to be their entire range:

• vp6300 series
• mp2210
• mp3135
• mp3320
• xp7000 series

There are no press releases from HP that they are leaving the market but, it certainly seems the case.

HP state that they will honor their warranties on all projectors sold and continue to provide critical projector accessories.

Link to HPs digital projectors product page.