It seems that GeoHot was quicker at releasing BlackRa1n RC2 than he thought. Originally, BlackRa1n RC2 was supposed to be out tomorrow but GeoHot said on Twitter that it was already available for download.

According to GeoHot’s blog post:

** Update — RC2 is out **
Fixed 3G issues
Tethered jailbreak for 3.1 OOTB ipt 8GB and new 3GSes
Fixed Icy issues
Both Windows and Mac
If you used RC1, no need to rerun

Hopefully BlackRa1n 2 will fix all these issues…

BlackRa1n RC2 can be downloaded from our iPhone Downloads section. The tutorial to jailbreak your iPhone using BlackRa1n remains the same.