MobileMultiUser is available on Cydia

Open Cydia, then

1. Go to [Manage] tab
2. Tap [Sources]
3. Tap [Edit] button
4. Tap [Add] button
5. Enter http://cydia.myrepospace.com/taka8aru and Tap [Add Source] button
6. Then Cydia processes repository. (It takes several minutes these days, because some major repository having trouble.)
7. Tap [Done] button
8. Select [taka8aru - MyRepoSpace], and you find MobileMultiUser

Please enjoy.

MobileMultiuser V3 for iOS 5 will be available soon