Nextel Direct Talk (Not Direct Connect)
I still have some of these. My family and I used them on the Carnival Magic cruise ship several months ago during a Caribbean cruise. They work pretty well, but I might spring for some DTR 550/650s at some point, since they are a full 1 watt. (I wish they worked with Direct Talk.) I have also considered a used R765, since they would work with old iDen units, but they are still pretty spendy. I have read that the Nextels with a fixed antenna have the best range. I have also eyed up some i365s with the fixed antenna. In the past I have advocated for these, rather than FRS, because you can still call 911 without a subscription in an emergency, but I guess at some point in 2013 I can no longer make that claim!
If aybody here does any range testing with these, please post your results. I think 1/2 mile is pretty common.