I had 2 aha-experiences in romania. First was a bill from hilton bucharest over 110 EURs for 1 week of highspeed wlan internet access.
Second, but much better aha-experience, was an offer from ZAPP, thats a local Wireless Access Provider in Romania, who offers a wireless interent device with usb connection for about 89 us$, this includes the chip and 23 hours of prepaid internet access. (a refill with additional 23 hrs is about 30 usd). It worked great in the city areas in romania; I tried it once using it on the countryside out of a moving train, but did not get a connection.
You can buy the zapp-device in all electronic stores and I also saw special zapp stores. Mobile communication is pretty popular in romania, there are a lot of cell phone stores.
What I liked very much about this solution is, that the connection speed was fast enough to use skype over it. So I solved 2 problems: mobile internet access and cheap phone calls.

p.s.: In Bucharest you can find cabs with the sign "internet cab", which are cabs with wireless lan. The technology behind it is a wireless lan router which is connected to a - zapp modem. :-))

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update 05.12.2007

My name is Dragos I live in Bucharest/Romania, I find the info from here useful so I contrib :)
GSM 800/1900 Mhz ; 3G 2100 Mhz
Cosmote: 0,80E/MB. www.cosmote.ro - only GPRS national
Orange: 0,90E/MB. www.orange.ro - GPRS/EDGE national, 3G > 100 cities, 3G+ > 5 cities (7,2mbps)
Vodafone: 1,00E/MB. www.vodafone.ro - GPRS national, 3G > 100 cities, 3G+ > 5 cities (7,2Mbps)

CDMA 450 Mhz
Zapp: 129USD+VAT for modem wireless + 70H +30H(after register)
reload card: http://www.zapp.ro/offer/data/zoe/zoecard/
CDMA max.150kbps national, EDGE max. 2,4Mbps > 100 cities