I also found the Delorme Street Atlas the best mapping/routing software available & will never forgive Garmin for eliminating it. That said, I have to admit that the Garmin 890 provides some of the attributes that I liked about Street Atlas. The large screen shows far more of the surrounding streets, etc than the typical small Garmin display. Of course you still need to use the horrible Basecamp software for trip planning.
While awfully expensive, has anyone seen
Maptitude ? It has been described as the best replacement for Streets & Trips or Street Atlas. No way I'm going to spend $700.00 to find out...