OOK
It is a fantastic piece of kit.
I've found that it can do a 3 hour marathon, although the sad fact is that I can't.
What has recently annoyed me is that I'll set up for a "quick workout" marathon on distance and time, all nice and early. Turn off, go to bed, turn it on, and it starts as a boring 305 again, and forgets that I'm in a race situation. Pah, doesn't the thing have mind reading capability as well as eveything else? Pah.
RTFM I suppose.
BTW : does Spoortttracks record teh splits that teh Garmin holds?