I think this is in the right direction - unique font with similar style icon. I would say make the font less rounded, and try having the sharp edges on the end of the "P" and top of the "B" (leave k flat). Kind of like the clockspot.com logo. Try experimenting with the icon, and making it abstractly represent the colorful blocks you see on demo.pomabook.com (browse to March 8 or 9 to see the blocks).
#158, #159 - the "infinity" symbol between the P and O is a bit hard to read. Can you try a version where the letters use the same typography from the clockspot.com logo? For example, notice the P in clockspot is different than the P you use here.
I actually really like this icon, and the colors, but I'd like to see more designs. Maybe some logo that's made up of many square blocks?
#175 - The logo typography im looking for is more like #210, a bit thicker, shorter p and b, and maybe try having the edge of the B slanted the other way.
The icon so far is my favorite, and most refined. Although ideally I'd like to see more different icons. As for the current icon, I'd like to see some tweaks:
1) Make the sharp edges of p and b more straight - its a bit rounded right now. 2) Try making p and b shorter. Not sure if this will look good but I'd like to see it. 3) Try putting an inner glow type texture on the icon, and experiment with different color scheme.
that's the reason I could not make the exact same letter belong to raspy's wordmark, since as it is a modification letter I respect not copying to avoid risk. I hope you understand.