Answer to simple side issue question on this link, will really help me.

Will the N900 function as a WiFi connected PDA without any sim card or cell phone service?

My PDA died and I am looking for a replacement. I do not want phone service and the cost thereof. N900 looks like it will function like an HP iPAQ 110/210 or iPod Touch, but be better with great expansion capabilility if I need it.

I really would appreciate getting the answer to this question.
Thanks.