Thanks Chris for the link.
Yeah just realized that even if I power via the barrel I will be limited to what Netduino can handle (800mA) now I don't know if that will be enough for the Wi-Fi / GPS Combination
Since I have some 7805 voltage regulators around, I'll just build my self one and power the Wi-Fi / GPS with it.
A 4.3 Netduino will sure be great!! more so if we also get a mini-2 that will come with One GoBus Socket that will support a Shield base and GoBus Hub