Same problem as everybody else. Works with WiFi, but not over 3G.
I've tested UPnP but i got error code nr7, no NAT-PMP support. And now I've been testing with manual portforwarding.
And when i push "Test connection" now i got no errors and it says its accesible from internet.
This is my remote log when I tried to connect
2010-06-13 23:40:41 PortMapperAction: Scheduling task PortMapperAction$2 (15831407)
2010-06-13 23:40:41 StatusReportAction: Scheduling task StatusReportAction$2 (10630672)
2010-06-13 23:40:41 StatusReportAction: Submitting status report:
2010-06-13 23:40:41 StatusReportAction: - PIN: 648866XXX, BonjourName: Macbook Pro, Addresses: [10.37.129.2:45631] [10.211.55.2:45631] [192.168.0.10:45631] [null:45631]
2010-06-13 23:40:42 StatusReportAction: - Done (detected external IP 126.96.36.199)
2010-06-13 23:40:42 StatusReportAction: Scheduling task StatusReportAction$1 (24833256)
And no errors there, but i still got the "URL resolver error - server is not reachable"