Without further ado...
Top 10 Dying Data Storage Technologies in 2007
1 - betamax
2 - optical jukebox
3 - LRC modules
4 - floppy disks
5 - NAS products based upon the Windows kernel
6 - 1 Gbps fibre-channel
7 - iFCP
8 - compact cassette
9 - laserdisc (LD)
10 - legacy filesystems (think Tru64's AdvFS, NetWare File System, etc.)
NOTE: I decided not to include obsolete ones (punch cards, 8-track tapes, etc.), or my predictions for the future death of currently shipping technologies.
I also avoided specific products (Compaq HSG80) and specific array internals (legacy NetApp gear with Alpha processors).
Have a great Memorial Day Weekend...