This is in an updated MyWi v3.4.2 cracked and compatible with iPhone jailbroken. This is the no rock extensions version of mywi so that means no installing rock which causes crashes if installed along with cydia and what not. Here is short instruction on how to install this cracked .deb file.

Now supports tethering on 3.1+ and all iPhones (including 2G/3G/3GS)! Create a WiFi HotSpot with a press of a finger! Wherever you are – you can connect your laptop or other mobile device to your iPhone easily! You can also use MyWi to enable default USB/Bluetooth Tethering on 3.1.

Notes: Make sure you uninstall any previous versions of mywi or this will cause glitches. This cracked DEB will not work if you jailbroke your iPhone using RedSn0w or a PwnageTool IPSW.

How To Install MyWi Via Mobile Terminal

Alternate Ways To Install:
Ssh your iPhone. You may see instruction on how to install .deb file via SSH. And make a folder called AutoInstall in/var/root/Media/Cydia/ so you have /var/root/Media/Cydia/AutoInstall which is case sensitive and drop this debs file in the autoinstall folder, reboot and respring your iPhone.