I have both (actually, it is a 100). I love them both.

I use the 2100 for the space, speed and heavier apps. It tends to be my daily use machine.

I use my 100 (close enough to the OMP) for special occassions, having copied over certain dates and contacts for special use. When I was working as an independent consultant, I kept dates for that, and related contacts on the 100 to seperate work and play. It worked out great, allowing me to grab the right tool for the day when I went off.