I will discuss the wavefunctions for open strings in warped compactifications, and in particular for D7-branes in warped Calabi-Yau orientifolds, which provide a string theory realizations of the Randall-Sundrum scenario. I will show how certain background fluxes, necessary in the presence of warping, couple to the fermionic wavefunctions and qualitatively change their behavior. Finally, the warped Kahler potential for the D7-brane light modes will be discussed, as well as a proposal to embed it in the full open+closed Kahler potential.