Are there any apps available that helps with connecting to wifi networks and such? Since I live in an urban area, there are networks everywhere but the touch doesn't seem to have the greatest connectivity. Also I can't seem to break more than 1200 kbps in bandwidth speed according to WiFi Speed Meter on http://www.apple.com/webapps/index_top.html. Are there apps which make wifi connectivity easier and more configurable? Also are there apps similar to netstumbler and wireshark on the ipod touch?