While I'm new to Linux as well, I find I'm able to enjoy our hobby quite nicely
with mostly native Linux apps. I use CQRLlog for my day-to-day logging. While
I'm still learining it and configuring it for my particular needs, it seems just
as powerful as HRD's logbook or Logger32. For contesting, I got N1MM Logger to
function under WINE with no difficulties. FLDIGI is a native Linux app, forked
to Winodws, for PSK31/RTTY and other digital modes. The certificate software
for Logbook of the World, TQSL, also has a native Linux version. About the only
disappointment I've found so far is there is very little good rig control
software that emulates what HRD does for rig control under Windows. That is a
limitation I can live with for the time being.