Being a regular user of a blackberry 8700 I can tell you...yes, the keyboard is small but very easy to get used to. It took me less than a day to get the hang of it and I even have fat fingers and have no issues.
Remus,
The reason I do not lug around a laptop is because I have my blackberry. It opens pdf, excel, word, etc. So I can get a lot of work done in a small package. While I thought like you did a while back, I now feel naked without it. Yes it can be a pain being TOO connected but it saves a lot of time. I do not want to take an hour answering emails when I get home. That time is for my family and surprisingly my wife would rather me have my blackberry than a laptop open while on the couch. I think it is a thing that she thinks I am always working of I have a laptop open.
Scott