i was curious what benefits i would have from jailbraking my ipad? i read about the cydia store, googled and didn't see anything special as far as glancing through some apps went. i figure there must be some good reason i would want to do it as it seems popular?
I found with 4.2.1 there are a bunch of little things that you can do that makes using the device a more enjoyable experience.
I use:
Activator - So that when the screen is locked I can press the home button to turn on the screen and the home button again to unlock the device. Makes it easier and can do it one handed.
FolderEnhancer - So that I can change minor characteristics about the folders and allows me to use the next item to move multiple items in and out at one time.
Multiiconmover - So that I can move multiple icons at a time.
GPower Pro - So that I can hold down the power button and it brings up three sliders, Off, reboot and respring. Normally it would just bring up the option to turn the device off.
Gridlock - Allows you to place icons/folders anywhere on the homescreen. If you want them on the bottom or along the sides, you can place them there without the iPad auto-arranging them.
iFile - Gives you access to the file structure of the iPad. Allows you to do many more things with the iPad away from a computer running itunes.
MobileVolumeSound - Adds the mac clickity sound when increasing or decreasing volume
NoMute - This is buggy, but basically it makes the hardware switch lock rotation again. Its buggy because it also mutes the device.
RetinaPad - Allows you to run iPhone apps at retina resolution instead of in crappy iphone resolution.
NoSpot - Prevents the spotlight page from appearing on the homescreen. I never used it and it was an annoyance to me.
TV Tube Sleep - Emulates the Gingerbread TV tube turn off animation. Look it up on youtube if you are interested.
XBMC - The greatest media player created. Plays files in nearly any format. Can handle 720P MKV files without a problem. Still not fully polished as it was just recently released for the iPad, but they are constantly working on it and updating it.
Hope I helped.