If you "null" sceNpManagerGetAccountRegion you will probably get 0x8002aa0c error. Or app will crash before that.
"netstartdialogunload" is also not related to psn.
You can just hit "O" on the PS3 controller when the login appears to bypass it
as for the Region checker, right now you need a proxy if you live outside the USA, it works with one I was hoping I wouldn't have to use one all the time though
living in Canada I have my ultraviolet movies on flixster which I can link to Vudu. No other app is available to play ultra violet content except maybe CinemaNow however that was removed. If anyone has that pkg PLEASE edit that and post it
Region check on VUDU is before account login to vudu not PSN