You will not run into too many speed problems on an N73 of all devices.
When I say that the ROKR is only a phone, I mean that the N73 is a smartphone. There are COUNTLESS more things you can do with the N73 than you can do with the ROKR. One right off the top of my head would be browsing a web site while listening to music, which you certainly can't do with a ROKR. Hell, you can open ANYTHING else on your phone while your music is playing. The ROKR will only keep one app open at a time. A2DP won't sound very good either, no matter what device you're using, if you're into quality music.
For anyone who knows phones, s60 always trumps Motos.
When I say that the ROKR is only a phone, I mean that the N73 is a smartphone. There are COUNTLESS more things you can do with the N73 than you can do with the ROKR. One right off the top of my head would be browsing a web site while listening to music, which you certainly can't do with a ROKR. Hell, you can open ANYTHING else on your phone while your music is playing. The ROKR will only keep one app open at a time. A2DP won't sound very good either, no matter what device you're using, if you're into quality music.
For anyone who knows phones, s60 always trumps Motos.