Yes, Verizon does sell a handset that does use GSM networks overseas only (not in the US). Don't know the exact model # though.
Is there a phone out there (or in development) that combines both CDMA (for US use) and GSM (for overseas use)? I don't care about ring tones, music, video, cameras, etc. I simply want one good quality phone which I can use for both calls and e-mail nationally and internationally. I find Verizon CDMA the best (by far) service throughout the US, but cannot use my phone abroad. I realize that I would have to contract with 2 carriers (or they would need to joint venture something) - but is it a possibility???