just as PDA?

[bdmeg2]

Smart phone newbie here...

Can this phone be used as just a PDA. I am cheap and ornery and I can't stand almost doubling my bill for something I do not need. Boss will buy phone but not service. I need PDA with a decent camera and winmo 6 or better for my business apps. Since PDA's are nonexistent, its this or the Omnia 2 or Hero. Long and short= if I buy this phone (on Ebay) do I have to activate it to use the non phone funtions and wifi?

Thanks in advance
bdmeg