So if you are desperately seeking to jailbreak your ipad while rocking 4.3.4 firmware on it, you are not completely out of luck. The jailbreakme.com is not working so far for 4.3.4 so you have to look for alternative methods. What is working is a solution from redsnow (i believe). Just follow this link http://bit.ly/qY0JXQ
and you will be good. There is a very nicely done youtube video that makes things very clear, I have used ipad for the first time and was jailbreaking for the first time, and i was able to follow it.
Please note that you will need to be looking for your *.ipsw
extension file (to follow the video), which is the complete firmware that you flashed your ipad with using iTunes. If you are a windows user, this file will be located at "C:\Users\[username]\AppData\Roaming\Apple Computer\iTunes\iPad Software Updates
" assuming you are rocking windows 7/Vista on your C drive, also please replace the username with whatever is correct in your case. Since I updated my ipad 1, the file I have in there was named iPad1,1_4.3.4_8K2_Restore.ipsw
(622,279,895 bytes, md5 hash 3414ec10c6e7f50d8eca5d5c25d60ff0 http://bit.ly/n1jv13
Also a note on putting the device in the DFU mode (whatever that is), when you follow the sequence in the video, make sure that your device is powered off!