We'd like to design a logo for our Wireless billing software, which helps an owner of any public place like hotel/restaurant/cafe/etc. charge the customers for using the Wi-Fi hotspot. The logo should be most in warm colours (red/orange/etc.) and probably some cold ones for contrast (e.g. blue).
If you think of displaying any objects on the logo, they could be a Wi-Fi router/antennae and/or Wi-Fi laptop.