dbscp doesn't work when dropbear is compiled as a multicall binary. This has been fixed in 0.46, which is now stable (since Nov 27). Next version of GNAP should include that version.
Hm, in fact scp needs to be called scp otherwise it doesn't work. So I'll revert the scp -> dbscp rename from the ebuild in fsscript. InCVS.
Version 2.0 is out