Will this shield actually work on our 802.11g routers with no support for b?
I guess my point is that if you say your device supports 802.11b/g/n that implies that it can run in all three of those modes. 802.11b/g/n itself is not a standard. It represents three separate standards. Marketing has shortened it by saying 802.11b/g/n when a device supports all three standards.
Operates with standard 802.11b/g/n access point at speed up to11Mbps (802.11b)
For people are looking for alternate for Arduino WiFi shield;-We have few threads about it:Replacement of Arduino WiFi shield - WIFI router(openwrt compatible), Pogoplug, Raspberry Pi .http://forum.arduino.cc/index.php?topic=146342.msg1110225#msg1110225WIFI router Tp-Link WR703N for Arduinohttp://forum.arduino.cc/index.php?topic=149865.msg1126278#msg1126278WIFI router Tp-Link TL-WDR3600 for Arduinohttp://forum.arduino.cc/index.php?topic=148392.msg1116815#msg1116815Pogoplug for Arduino wifi and even housing and power supplyhttp://forum.arduino.cc/index.php?topic=158832.msg1191296#msg1191296The bottom line is to start testing wifi with Arduino , all you need is used/junk PC plus few dollar wifi usb stick.