The alarm icon shows the alarm is set. Further information: Set the alarm
The HSDPA icon shows an HSDPA data connection is active. Further information: Select network
HSDPA is a high speed data connection which is only available in 3G networks. Your mobile phone automatically switches to HSDPA when it's available.
The Wi-Fi icon shows that your mobile phone is connected to a Wi-Fi network. Further information: Connect to Wi-Fi network
When your mobile phone is connected to a Wi-Fi network, you can connect to the internet without using the data connections on your mobile phone. Wi-Fi is high speed and no data charges apply when using Wi-Fi.