edit: should have added this to napho's thread. thanks for not drilling me on that one.
I don't know if these are the first versions with multi-sourcing, but they were just added to download.com on 3/12 and 3/15/02 as new versions. they both list "swarmed transfers" which seems to be the same as multi-sourcing when i went to their individual sites.
Limewire at download.com
Bearshare at download.com
has anyone tried multi-sourcing on the gnutella network?
edit: it looks like it is brand new to bearshare according to download.com's description. but not brand new on limewire i guess.