Nothing new, really.
University of Arizona Phoenix Mars Mission
Landing Countdown:
289 Days 12 Hours 20 Minutes 00 Seconds
This is pre-launch old.
Phoenix landing ellipses. It will be a northwest to southeast ellipse, for the launch early in the range. The Phoenix team probably already has refinements on this.
Google Mars for context, about the same scale. Heimdall crater is prominent mid-right.
MRO image: Sweet spot for landing
One hopes in about 10 months MRO may re-image this area and spy a tiny little Phoenix lander sitting there.
Other Phoenix images