No jailbreak for 4s at the moment BUT the dev-team (musclenerd) has managed to dump the iPhone 4s bootrom so it's a matter of time before an UNLOCK will be out for the iPhone 4s (seems that the exploit only works for the 4s). So there is a path for unlock.

Just MAKE SURE you DO NOT update to 5.0.1, I believe all this exploit is in 5.0 (that's why the dev team is asking people not to upgrade to 5.0.1)

Be Patient and ye shall be rewarded.

Here's the Link to the news about the success of dumping the 4s baseband bootrom

iPhone Dev-Team Dumps the iPhone 4S Baseband Bootrom

Jus wan to ask. If I'm using iOS 4.3.3 now, so when the jb for ios 5 do came out, how can I update my phone to ios 5 first since once I click update in iTunes, it wil automatically update it to 5.0.1 (or newest iOS).

just jailbreak my ip4 IOS 5.0.1..but off course tethered but convert to semi-tethered

so far so good and stable...

Based on my experience in jailbreaking device. JB developers tend only implement JB on latest IOS instead of aiming for old IOS. For instance, latest IOS 5.0.1, they will go developing JB for IOS 5.0.1 instead of 5.0.

When JB is available for latest IOS. REMEMBER to update iTunes before clicking restore via iTunes.

Based on my experience in jailbreaking device. JB developers tend only implement JB on latest IOS instead of aiming for old IOS. For instance, latest IOS 5.0.1, they will go developing JB for IOS 5.0.1 instead of 5.0.

When JB is available for latest IOS. REMEMBER to update iTunes before clicking restore via iTunes.

This is usually true but Apple has been updating the firmware faster than the dev-team can handle. I believe for the iOS5 jailbreak, they found some exploit in iOS5.0 and was working on it when Apple came out with 5.0.1 due to the battery issue. Some of the exploit may have been closed by Apple as well so that was why the dev-team was recommending that people stick with 5.0 and not upgrade to 5.0.1

I really wish that you were right. Previously my 5.0 during jb crash until I have no choice to restore factory default and upgrade to 5.01.. Haiz. Thanks to seri0us...

if we do semi tethered, what will happened if we install cydia apps that required reboot device?

If Respring : no need to do anything, it will respring without problem
If Reboot : Boot tether via redsn0w

Better install Cydia tweaks only when you are accessible to your PC/Mac.

if i were to jb my ios 5 now, when the untethered jb is out, can i jus straight away upgrade to it? or do i need to restore my phone back to its unjb condition? cz if i were to restore it, it wud automatically update my firmware to 5.0.1 rite?

guys, i have a jb'ed iphone 4 with 4.3.3 firmware but it has loads of craps. So, i intend to restore it to original 4.3.3 since that iphone has a 4.3.3 SHSH.

be it in DFU mode or recovery mode, error 3914 keeps popping up, though i have used the latest updated tinyumbrella and untick that 'cydia on exit' something on it and run the TSS server.

what's the problem actually?

If Respring : no need to do anything, it will respring without problem
If Reboot : Boot tether via redsn0w

Better install Cydia tweaks only when you are accessible to your PC/Mac.

At least we have hope in hand rite. Chill for now man, semi untethered is gooding wert. Usually I dont install unnecessary apps. Like Seri0us, did not even search it via Cydia before. Sorry it happened on you man.

@ azraeil
You are definitely right, that is why i'm still on 5.0 lol. That was just my accumulated experience, but since dev team is not recommending an upgrade, just stay still on 5.0 first lo.

Jus wan to ask. If I'm using iOS 4.3.3 now, so when the jb for ios 5 do came out, how can I update my phone to ios 5 first since once I click update in iTunes, it wil automatically update it to 5.0.1 (or newest iOS).

Instead of using tinyumbrella, try this guide. My guess is on incorrect host file. Refer to the link.