For my Samsung Transform M920 (EB28, Sprint/CDMA), above mentioned z4root, Frama root, SuperOneClick (SOC), etc did not work.
But, "Intercept Root" (V1-35) worked:
https://code.google.com/p/intercept-root/
( SHA1 Checksum: 17b7c66cbf5ecb18cdab6890063e903db6091150 )
(an external computer is...