Hello,
DASH7 looks like a pretty good stack to use for 433MHz projects, and their primary platform is the CC430. I was a little surprised on TI's website to not see any decent CC430 development boards that support 433MHz. What development board would be best for developing code on the CC430 with 433MHz?
Personally I think that TI should make a CC430 based LaunchPad (one version 433MHz, one version 868/915MHz), that is pin compatible with the MSP430 LaunchPad. Also, I think it's in TI's best interest to push DASH7 a little more.
--Derek