I am about to dabble in the world of Smartphones/Blackberries, but I realize I have much to learn.

First problem, my company says they will NOT pay for any data plan (even though Project Managers at my company travel up to 50%).

I used to carry a Palm device, which could sync to my Outlook Contacts and Calendar. I would very much like this capability, so I will know about my upcoming meetings without having to boot my laptop. Several times I have planned a conference call for immediately after a flight, but forgotten in the airport rush. Of course I never got notified because my laptop was off...

I assume the data plan provides connectivity to my company email, so I will immediately receive mail even without my laptop. My company will not pay for this...

Do smartphones have regular Wi-Fi access? Can I surf the web, assuming I have to pay for the network access (Boingo or T-Mobile at the airport, for example)?

Can I access my personal POP emails (gmail, for example)?

In general, does it make sense to buy a smartphone, without a data plan?

Thanks, in advance!