I've written to the IAU about naming exoplanets before, and they were rather dismissive of the idea, stating that it was not in their "charter".<br /><br />That said, my feelings on the subject have changed since then; I don't think naming them is practical. We have our hands full with historical and mythological names in the Solar System already, and extending these to planets around other stars would just make things much more complicated, and lead to accusations of cultural arrogance, among other things. If we wouldn't bother giving cool names to the millions of stars sitting around in various catalogs, we shouldn't bother with giving specific names to exoplanets. That said, I'm all for unofficial names that can be bandied about for fun or emphasis, like "Osiris" for HD 209458 b, or "Bellerophon" for 51 Pegasi b, etc.<br /><br />Add to that the fact that we really don't know how many of the exoplanets we've discovered so far are really planets, and which are actually brown dwarfs or binary stars in nearly pole-on orbits that mimic planets. Those answers are forthcoming, but won't be solid for another 10 years at least, I think.