If you want, or even need, to spy on someones text messages this is a fairly easy task in the modern smartphone era.
Most smartphone OS have specific spyware written for the, however, you do not need to worry about the OS used by the phone you want to spy on when buying any mobile phone spying software as the different programs are all designed to work on different OS, for example if you know you installing the spy software on an iPhone you would not need to worry about it been OS 2.x, 3.x, 4.x or anything else, just download the iPhone version of the spyware.
In addition the above process can be simplified even further if you install the spyware on the handset using the handsets integrated browser as the installation script that is run when you access the install page will identify the phone, its OS and everything else.
For the record some of the most commonly spied on OS include:
- Blackberry OS 4.2.1 and higher,
- Android 1.0 and higher,
- Symbian S60,
- iPhone OS 2.x and upwards,
- Windows compatible mobiles.