Currently the 4150 is one of the devices HP plans to upgrade. Plus it is their newest model. You are almost garanteed an updrage... Almost. They could change their mind at anytime but HP has been good with upgrades in the past. I am counting on the upgrade for my 2215.
Can't wait! *happy dance*
Oh, and free would be nice but i would not complain about $29.99 like the 2000 to 2002 update. Since it is an upgrade to second edition it may be free. i hope.