Great review, pal lemmyslender!

To use bt on 0.0.8 nitdroid, do this under maemo.
From forum.nitdroid.com helper, mornage with modification:
========================
root
cd ~/MyDocs
wget http://downloads.nitdroid.com/nitins...00-700.tar.bz2
bzip2 -d oc-profile-500-700.tar.bz2
mount /dev/mmcblk1p2 /and
cd /and
tar xvf ~/MyDocs/oc-profile-500-700.tar
cd ~/MyDocs
umount /and
=============================

I was able to test Bluetooth GPS, Bluetooth GPS Mouse Unlimited, and also a vivid user of ovi map.

1st thanks to OPs report about external GPS, and the idea of search about similar apps, thanks.

1) Bluetooth GPS. It works like a charm. Go Android market, dl and install. You have to pre-pair your BT GPS. once pre-pair, open Bluetooth GPS, and choose your BT GPS device, it connects right away, and it also open map and allows one to look at map. It runs very smooth. Absolutely smooth without any hiccup. Unfortunately that is ALL to it. I was NOT able to make it run background. That means you would NOT be able to run any other apps while Bluetooth GPS is running. I have to confess that I did not read the manual, maybe it is more capable that that. And the cost - FREE.

2) BLuetooth GPS Mouse Unlimited. Using the trial version, yes, connected to BT GPS device is very easy, and straight forward, after connection, you can go back to desktop to start your favorite apps. I have tried several facebook like social networks requiring gps location, ALL worked. Google navigation, with voice/route/directions etc as reported by lemmyslender above post, ALL worked flawlessly! and smooth.

Google app Places works very well too, find anything you like, theatre, cafe, gas stations, hotels etc near your location, and 1 click take you the maps with search results. Very cool.

Google lattitude works too, connect to friends.
Obviously, it wont do no squirt when you are offline. It is a strict online app.

Google Multimap (paid app) allows hybrid, openstreet/sat etc up to 8 maps, cool. dl is NOT fast though, but it works.

Halfway playing with the BT GPS mouse unlimited, the famous airplane mode turned on, by self, it does not matter, just exit the app and re enter the map, despite its airplane mode, BT connect and business as usual. Terrific.

3) Ovi map, online or offline, both work somewhat, your choice.

Bottomline: If you have unlimited data online, go with nitdroid + Bluetooth GPS Mouse Unlimited. It is a full feature GPS and runs fast enough.

If you are a poor soul, like me, I still use ovi map, I aint got unlimited data online plan ... yet.

bun