Applications on your iPhone than the task you need to perform is jailbreaking
If you want to add ringtones, change wallpaper, or run third party applications on your iPhone than the task you need to perform is jailbreaking. It helps to go through your iPhones file system by which it can easily accessed with the help of computer. A wide number of tools are available to jailbreak.
Its your good luck if you are working on Intel Mac. The easiest software to use is “iFuntastic”, it is very simple to use and it helps you in entire process with help of prompts and pictures which are use to be very helpful. The iFuntastic crew’s upcoming releases could be with PPC support. If you are a PPC user then the next release of iFuntastic may serve you better and also if u are not interested in downloading, compile and install complicated hacker tools.
The only thing you have to keep in mind is that you need not to jailbreak you own computer. To use iFuntastic you can use your friend’s computer for 15 minutes. That would be handy if you’re a windows user or working on G5 or G5.
There is a much more complicated alternative to iFuntastic that’s iPhone Utility Client with its amusing acronym iPHUC. As there is no direct link requested by website in question so, for that you have to surf internet or you have to google. Jailbreaking will be allowed by iPHUC on G4 or G5 if you have access to your developer tool. The thing which should be kept in mind is that the process id ugly and involves hackery to extreme level. iActivator tool’s latest version which can perform iPHUC jailbreaks is somehow easier way to use iPHUC. Universal Binary is the thing which makes it best of all.
Windows user can utilize original fully-leaded jailbreaking. An copy of original 1.0.0 firmware would be required which would make a complicated bit. iPhone have to be restored once during its 1.0.0 release to get that.
This all results that way to jailbreak will be difficult if you don’t have a Intel Macintosh. It is recommended to rely on social networking or you have to google many times. irc.osx86.hu is the best place to get started to jailbreak in the iPhone channel. This should be kept in min that if someone is helping you than he/she is doing that for his/her own goodwill and be polite always.