I'm having the same problem on my 1g as well, I noticed that the rear subframe bushings are pretty worn out so I ordered some new ones and I will be replacing them soon, I'll let you know if that fixes the problem.
I have a few dsm parts for sale,if you want pic'sor have any questions pm me, call me or text me (805) 890 1298 all prices are plus shipping, pick up available. Pictures of the parts are in my photo gallery.
Socketed Eprom ECU with keydiver stage 3 eprom chip for 660's $240
SPEARCO FMIC with...
I've seen it too, A friend of mine just got the app for his iphone but he's not sure about getting the software yet, He want's to make sure that really works first.