Well, if i'm not wrong in order to upgrade to IOS 5 when it'll come out i must have IOS 4.3.5 right? If this is not the case then like you suggested i won't bother upgrading to 4.3.5. So basically iorder to upgrade i gotta do a restore of myipad which will eliminate the jailbak but just after i do a full backup right? Then i follow the same procedure that i did for 4.3.4 right? So if i don't need IOS 4.3.5 to upgrade to IOS 5 i'll just do this if the procedure is the same when it'll come out^^ just one last question (hopefully^^) i can do the backup of the whole ipad so whatever it has (also savedgame data??) with ioenssh right? I just copy the whole folder and i should have a backup of the ipad(guess it'll take quite a while ^^) thanks everyone for help, i really really appreciate all the help, i only wish these things were easier to understand for me (i understand well english for my age it's just when it's technical then i don't udnerstand anything, sorry:( ) and i also wish i hadn't to be super sure of everything before i do something^^ thanks again everyone for your special kindness.
No, you don't need to install 4.3.5 to go to IOS5 Timey. You can jump from any firmware to the newest. As others have said, there is absolutely no reason for you to upgrade from 4.3.4 to 4.3.5.
If you still think you must do it, follow this step-by-step guide - http://www.ipadforums.net/jailbreaki...jailbreak.html
While we don't know all the details about what will be possible right now with an upgrade to iOS 5 (heck, we don't even know if it'll BE jail breakable!), you should not have to upgrade to iOS 4.3.5 in order to upgrade to iOS 5, when that time comes. So, relax ... you are fine where you are.
Now, I'm not sure making a copy of your iPad will serve as a backup. It doesn't work like that, AFAIK.
The best way to make a backup of your Apple-specific iPad stuff (e.g. apps, and any game info) is to do a regular backup in iTunes.
For Cydia tweaks, we recommend PKGBackup, mainly because it has worked well for those of us who've tried it. It just makes life simpler in that it backs up your settings and tweaks and a list of your current tweaks, so that, when needed, it can put your iPad back the way it was. This is versus you having to reload all your Cydia stuff manually - and then putting your iPad back the way it was. It's a time saver.
All that to say that it is not necessary to buy PKGBackup. You can just keep a separate list of the Cydia tweaks you've installed and of your various settings. Then, you can just refer to that list to manually put your iPad back to the way you had it. PKGBackup just saves so much time...
Again, I'd have to bow to other experts who may tell you differently - but I don't think copying the contents of your iPad will work as a backup. I don't know for sure, but I do know that I would not rely on that as a backup. It's an intriguing idea, but I am pretty sure it's not that easy (cause the firmware would have to know where to go to find the stuff you reloaded on the iPad after a restore ... and I don't think it can).
The bottom line is - you're fine on 4.3.4 as far as being able to upgrade to iOS 5 when (and IF) iOS 5 is released and jailbroken. So, enjoy it! :D
P.S. Hey, that's not fair! I right a long note to say exactly the same thing that f4780y wrote! Is it my fault that I type more? And he hits the submit button faster? :)
Ok, i see now, thanks everyone for help i really appreciate