Must have mobile applications

All we have mobile phones, but we have not good mobile applications/software’s.
So these are the applications which are very useful and must have.
Office suite 4
This is the mobile version of office. It works on any symbian series 60 phones. It allows you to edit and view words, excel or PowerPoint document right on your phone.
There is no any advanced function but it has basic functions which work very well.
Platform: symbian s60
Buy from: http://tinyurl.com/2broyc
Handy zip
This is mobile version of WinZip. It is very useful in many situations. When you
Start the application. It search Archie and display them. You can also create Archie. You can choose between five levels of compression from none to maximum.
Platform: symbian s60
Buy from: http://tinyurl.com/38ptue
Blacklist
This application is very useful when you want to block unwanted calls.
You can choose if you want to block number from private numbers, recent numbers, unknown numbers and your contact numbers.
It keeps log of all blocked numbers for up to 60 days.
Platform: symbian s60
Buy from: http://tinyurl.com/33kd33
Opera
Opera is a fast browser. It has many advanced function. So if you are surfing on the internet by internet enabled phone. You can use this software.
Platform: symbian s60
Buy from: www.opera.com
Anti-theft
Let’s face it if your phone is stolen what you do, nothing!
But there is a solution anti-theft is software which alerts you if your phone is stolen. When you install the software it asks you for a mobile number and password and when phone sim is changed it sends you a message and locks the phone. To unlock the phone you have to enter the password which are only you have. It sends message on the number you given to the software. In the message it gives you the mobile number of the thief and area in which he is.
Platform: symbian s60
Download from: http://www.download.com/Anti-Theft-for-Symbian-Mobiles/3000-2064_4-10645438.html
So these are the some useful mobile application.
If you have better mobile applications please tell me. I include them also.