Ben - I've recently changed a bit of the model code. CLI should now return squeezebox2 or squeezebox3 as the model (see change 23789). Maybe this broke your player icons.

some more information: calling $client->model() will behave as before, returning squeezebox2 (the "technical" model, if you want) for compatibility reasons. $client->model(1) will tell it to return the real model (sb2 or sb3) based on the MAC address. The code previously was in some Slim::Button code. I decided to move it to a more central place. CLI uses model(1) to return the right model. But this change might have broken some CLI applications which assume sb2 == sb3.

The following patch plus renaming squeezebox2.png to squeezebox3.png should do (can't test, as SP doesn't compile any more on my machine :-()

Index: /Users/mh/Documents/workspace/sp73/squeezeplay/share/applets/SelectPlayer/SelectPlayerApplet.lua
===================================================================
--- /Users/mh/Documents/workspace/sp73/squeezeplay/share/applets/SelectPlayer/SelectPlayerApplet.lua	(revision 3353)
+++ /Users/mh/Documents/workspace/sp73/squeezeplay/share/applets/SelectPlayer/SelectPlayerApplet.lua	(working copy)
@@ -176,6 +176,7 @@
 		softsqueeze = true,
 		transporter = true,
 		squeezebox2 = true,
+		squeezebox3 = true,
 		squeezebox  = true,
 		slimp3      = true,
 		receiver    = true,
@@ -189,6 +190,10 @@
 		-- use a generic style when model lists as not valid
 		playerModel = 'softsqueeze'
 	end
+	
+	if playerModel == 'squeezebox2' then
+		playerModel = 'squeezebox'
+	end
 
 	-- if waiting for a SN pin modify name
 	if player:getPin() then

change 3354

fix player selection skin for SB2 vs. SB3
- SC 7.3 returns squeezebox3 for a SB3 -> create new skin style for this player
- rename squeezebox2.png to squeezebox3.png
- change squeezebox2 style to use squeezebox.png instead

-> please note that this change won't fix the wrong icons on SC 7.2, as it returns squeezebox2 for SB3 too. In this case SB2 and SB3 will get the SB icon

This bug has been fixed in the 7.3.0 release version of SqueezeCenter!

Please download the new version from http://www.slimdevices.com/su_downloads.html if you haven't already.  

If you are still experiencing this problem, feel free to reopen the bug with your new comments and we'll have another look.