After using my 2597 for awhile I find there are things that I like better about it than my 855 but I sure don't think the voice commands are anywhere as versatile as on the 855. It would be nice if some firmware updates could take care of that. I also find the beeps that I can't shut off every time I use the touch screen most annoying.

I don't know why programmers try to fix things that aren't broke.

Anytime you have a 50-50 chance of getting something right, there's a 90% probability you'll get it wrong.