Wavesecure is currently free for android phones. If you get it before the end of January it is free for the life of your phone number saving 15 euro a year. You can track your phone, lock it, set an alarm off on it and even wipe all your data if it is stolen all remotley using the internet. If someone changes the SIM it requires your special pin for the phone to work again rendering it useless which is great. Also give the thieves the fright of their lives setting off the alarm.
Supports lots of other phones to but not free for those, windows market place and ovi stores have it available and it is 15 euro a year but well worth it.
A top product and free if you get it soon.http://www.mydroidworld.com/forums/news-blog/485-wavesecure-free-life.html
It is an excellent product and could save you in the event of losing your phone.
It is avaliable from the Android market place if you want to download it straight to your phone.
Hope this is useful to someone.