Traditional WiFi communication is limited to 2.4Ghz, however the 802.11n is a standard for WLAN which can work on 2.4Ghz and 5Ghz bands.
The required experience, stated in the job description includes:
- Driver/firmware development on embedded platforms
- Implementation of 802.11 a/b/g/n & related specifications.
- 802.11i/802.1x Security protocols
- Good understanding of wireless RF technologies & co-existence issues of 802.11 PHYs with other Wireless interfaces like Bluetooth.
Current iPhone 3GS does have better support for WiFi and Bluetooth, however, Bluetooth is only limited to iPhone to iPhone. We hope to see Apple implementing iPhone to PC/Mac/Linux and vice versa support in iPhone 4G, since it would definitely make transferring files and music that much more easier. Listening Apple?