The Envy 13 has dropped in price by about $300, and now starts at $1,499. That price gets you a Core 2 Duo SL9300 CPU and Mobility Radeon HD 4330 GPU. Not much of a change on that model, outside of the reduced price.
The Envy 15 is the one that gets the biggest boost. The starting price has been seriously slashed to $1,299 with a Core i5 CPU (Core i7 CPUs are available, too). The standard graphics card is now the excellent Mobility Radeon HD 5830 with 1GB of RAM, a bit of an improvement over the 4830 in the previous model.
Both systems are available for order today from the HP site.