Just as an aside, I've found a Blackberry (plus BES server) and Addonis (available for a couple of other platforms as well I think) really good.
Logs all inbound and outbound calls to your calendar (on day and time, for duration), able to send data between email/calendar/tasks, prompts to add new numbers to your contact list and also a blacklist for incoming calls.
Really handy for trying to keep an idea of the day, especially when you have been too busy during the day, to write down everything you did. Then you have the power of outlook/exchange to search through everything if you want a summary, as all my clients have their company code in their name, in my contact list.
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