I was just checking these out online when I noticed this post concerning the SPOT. I have been debating whether to buy a SPOT or PLB for my solo hiking. The SPOT is nice for sending ok messages to update the family, but what good is it if you can't depend on it. I think I will opt for the new PLB given the price, weight and dependability.
Looks like $299 for the 5.3 oz 210 unit that has built in GPS. The sole US supply to date is Revere Supply out of Jacksonville, FL. They don't appear to have an online store, so it looks like the old fashion order by phone.