Is tethering free? If so how to?

[devicemanager]

How about this? It seems they are all some what different.

Right, the option to choose your network connection is no longer there. By default the registry is set to Phone as Modem.
For you, and everyone who wants to use Internet Sharing with the new ROM:
First, delete this file extension from your registry:
HKLM\Comm\InternetSharing
Delete this string: Extension - isext.dll
Then edit the following registry entries
HKLM\Comm\InternetSharing\Settings\ForceCellConnec tion
Change from Phone As Modem to Sprint PCS
HKCU\Software\Microsoft\InternetSharing\LastCellCo nnection
If it displays Phone as Modem change it to Sprint PCS
Or you could just install the cab file I posted in this thread which will edit the two registry entries.
Some people have said the two registry edits aren't necessary, but I guess it doesn't hurt.
Remember, excessive usage might get your account flagged by Sprint, so be careful.