Sneak-Preview development reusable in Ramp-Up (Final)Version?

Hello,

my customer will participate the ramp up program of Netweaver.

We think about to start develop a few functions and webdynpros in the sneak preview.

Will the development from the sneak-preview run on a ramp-up (or final) Netweaver? Are there huge differences between the sneak-preview and the ramp-up-version?

Thanks for help!

Regards

Renald