AdiIRC

The 'add x lines of logs too the channel' function is OK, but what if...
[x] Put all log-data since the last time you activated the window in channels

So if the last time you activated only 3 new lines where received, only show 3(+10) lines of text. Probably with a line marker for easy spotting.
Of if there where more then 20 lines posted, show them all since you actifvated it.

Making the function more dynamic.

Also, would it be possiable to put colors on them?

quit [2011-02-26 00:34:31] * Dudeone (UserNick@User.host) has quit IRC Connection reset by peer
join [2011-02-26 00:41:39] * Paws (swaP@example.com) joins #channel
mode [2011-02-26 00:42:16] * Paws is now known as swaP

The quit and join are here to identify the kind of color it should be.