Hello All, I am a long-time blackberry user (10+ years) who is now considering a new generation phone. Primary consideration for me is the ability to run apps, expandable addressable memory and the ability to upgrade the OS over time as new versions are available or as hybrids or hacks emerge that are compelling. I am not a traditional consumer level buyer, but rather want an "open" platform that will allow me to extend the life of my device through upgrades. I am not interested in chat, games, movies, music, etc.. I want robust integration with my company Exchange server to allow tight address book, calendar and email functionality. Access to a web-based CRM tool via a fast browser interface will be very helpful as well. I travel nationally in a business development role so I am mobile more than I am in an office, so I need to be connected. The desire is to be able to do so via a new phone rather than an old phone and a laptop. ( I may go to a mini netbook) I've come here to learn more about Android, the carrier-specific constraints and recommendations about hardware manufacturers from you all. Thanks in advance for your guidance!