I am just so happy with my N900. Perhaps it's because by previous phone was a HP ipaq running windows mobile 5. Tied up to that awful sync program that you had to have 5 goes before it even started to do anything. I can play and swap ipod tracks , I can use amorak to edit tracks and titles directly on the device and listen to them too. Sure I would like to edit docs and spread sheets, but that will happen one day, yes I would like to cache enough maps to use it as a navigator offline, but that can happen eventually too. That stuff would never have changed on my old phone, just put up with it ! That is the point really, if you have the get up and go to get off your *&^ most realistic expectations can be resolved.
Am I worried if full microsoft exchange server functionality is not implemented, NOT AT ALL, I will never cough up for an Exchange server for my business. It already fills 90% of my wish list, with some of the things I want to do, needing a custom app, but at least it can happen. It's a choice you make, an iPhone that makes the cash register ca-ching at every turn, or Linux that you have to wait or work at the solutions perhaps 6 months or more. I can see a path through to have my N900 be a 98% fit for my needs in 6 months and that there may be a phone that MAY do all I need off the shelf in that time. I will always want a phone to be smaller and have longer battery life, as long as it lasts all day an not let me down when I need it, it's all good. Thanks to the Maemo team ! Thanks to Nokia to have the courage to open the door. That could be a career limiting move in many organizations .