If you want something "like" a TomTom, you could get TomTom...for the PPC. It's not free like Google or Live but, as you can see,you get what you pay for. TomTom Naviagtor 6 runs around $100 and runs on most devices. I've been running it on a Treo 700wx but am moving next week to a Samsung i760 and am told it'll work.
TomTom link:
http://www.tomtom.com/products/categ...D=2&Language=4
BuyGPSNow link for $99.95 deal:
http://www.buygpsnow.com/tomtom-navi...anada-695.aspx
I was skeptical but I took the plunge after buying StreetAtlas for years and using Google and Live and always feeling like I didn't have a "real" GPS device.
Voice (but not street names), live traffic, etc.
So far so good.