[quote user="Nick de Smith"]I was wondering if there is any exemplar code out there for OTAP - even just some pointers as to a good approach would be appreciated - remember, I'm new to MSP430s (and Ti in general)...[/quote]The eZ430-Chronos watch has a Wireless Update (RF BSL).
See the examples\boards\eZ430-Chronos\Software Projects\Chronos Watch\eZ430-Chronos v1.0 - black PCB\IAR\Wireless Update directory in MSP430ware for the source code.