by Wack0, illinialex24, Bionic Sonic, SifJar
WiiSCU by Wack0 (mod of IOS51+shop by tona) - powered by PatchMii. The application gives you the option to install new versions of channels and IOSes without touching the system menu.
CHANGELOG v0.24 Beta
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-Allows installation of IOS70
-Latest Shop Channel update
Please note this beta is untested as of now.
News Source (1)(2)