This Tail plug-in combines the ideas from vimscript#1374 and vimscript#1692 into one plugin offering both preview and tabbed tail functionality. I also added shortcut mapping to "set wrap" and "set number" - which both can be useful when observing log files.
Some bug fixes. Vimball has been checked and should work Ok now.
However, in windows "checktime" does not work and the "pedit!" workaround is problematic when used with tabs and therefore has been commented out. As it is Windows users need to manually reload - or uncomment the "pedit!" workaround and not use tabs.