I haven't use ovi map 3 but I am sure if you don't want to buy multiple regions of maps for sygic, you might as well wait for Ovi.

If you have the money, go for sygic. If you don't mind the wait, wait for Ovi 3. I am sure we will be getting an update by the end of the month (crossing my finger) and ovi map 3 might come along too. I am hoping....