I'm running the Droid X.
There is Nuticharts, which is a lite version of AcitveCaptain.com. It's very useful but does not offer "live tracking" or chart plotting (which ever you prefer to call it). You have to manually hit "my position" to get it to update the position dot.
I'm still looking for a navigation app that will either draw a track plot or at least automatically update the ownship position dot periodically.
Anyone who has a lead on this, please chime in.
S/V Old Shoes
1973 Pearson 30 #255