I’ve had a Treo for the last 5+ years - 300 / 600 / currently rocking the 650.
Work gave me a BB 7100i.
Based on everyday use, nothing else makes my life easier than the Treo. I plan on getting the new 700p once the initial wave of early adopter issues get resolved.
I’m sure your wife will be more than satisfied by her purchase.
OT - it’s comforting to see that 1/2 of the phones out here in the Bay Area are Treos.