LTSP client synchronize blackberry address book & calendar with evolution

I do not think it is possible to open a FIFO over a network. Your LTSP client can create FIFO pipe to the cellphone, but it can't create the FIFO in the server.

I can't really come up with a easy solution. If it is possible, maybe you can dump the data on the client (if it is hdd-free, set up a ram-disk, or use one that LTSP client has created). And after that, import/export to evolution. This might be hard, or easy, depending on what flags you can send to this sync software. You will however, need some scripting to make it easy for your users.

Further reading:

http://linux.about.com/library/cmd/blcmdl4_fifo.htm

https://beej.us/guide/bgipc/html/single/bgipc.html#fifos