Cam Banks
Adventurer
4e halflings are basically just kender. All they need is a racial power to taunt, some of their racial weapons thrown in, and viola, the mechanics are done.
I wrote an unofficial conversion document for our Races of Ansalon sourcebook and the Dragonlance Nexus put it online here.
It's definitely a work in progress—I've had some good feedback from the fans over at the Dragonlance forums already.
Cheers,
Cam