m.a.t has posted a free new theme for the BlackBerry 8300 Curve on BlackBerryForums.com. The theme has a nice and obviously understated look and compliments the new crimson 8310 Curve perfectly. The theme comes in both today and Zen styles and currently only has a Desktop Manager install option. Hopefully m.a.t will release an OTA option soon.
Check out the original forum link on BlackBerryForums