With ios 5 in general there have been more betas than any other ios before it.
There were 7 betas for 5.0 so assuming that there will be 1-3 for 5.1 is just a guess at most.
We don't know when 5.1 will come out it might be 2 weeks or 4 or 6.
No one knows except Apple.
I think waiting to release the JB for the next version is kinda futile.
5.0 or 5.0.1 JB should satisfy all iphone users at this point.
I really cant see a big improvement in 5.1 anyway (like the big update to features etc. was 5.0 ) so there should be a JB released for it. Especially since there are numerous a couple of videos showing the JB already. Whats with the teasing?
I understand the issue with not wanting to release too soon but what's there to say that ios 5.2 won't come out immediately after 5.1 does? I cant really see a big improvement in updating to 5.1 anyway. 4.XX to 5.0 yes but 5.1 wont really be as big; hence the need for a 5.0 JB more than 5.1
Because 5.x updates dont come out as fast. They are usually bigger improvements than 5.x.x releases.
You might see 5.1.1 released after to patch the jb hole but not 5.2 immediately.
And since we might be only days or weeks away from 5.1 its pointless to release it now for 5.0.1
And trust me I would kill for a JB right now but waiting for 5.1 makes more sense IMO.