Many phones use different algorithms to translate the actual signal strength into visual signal bars. Just because two different phones might say 3/5 bars they could actually have very different underlying signal strength and simply have varying levels of optimism in their interpretation.
You can get a dB reading for your Galaxy Nexus by going to Settings -> About Phone -> Status. The Signal Strength field should give it to you in both dB and ASU.
I like the idea of the CL tabs being built into the web page. When I'm looking for an apartment or something I'll tend to have a lot of CL pages open and I'm tired of them squeezing out all my other tabs.
I've experienced some aspects of this before and I know it can be difficult. The longer it goes on, the more set into the current deal you are and its very difficult to change.
One way it could be made easier is if there was an independent reference point. E.g. can you afford to hire an employee? (1) This employee could pick up some of the work and it would presumably have to be paid for 50/50 and (2) If you are still putting in many more hours than your co-founder then you can log those additional hours and you should at least get paid a similar amount that you are paying to the third employee.
You can get a dB reading for your Galaxy Nexus by going to Settings -> About Phone -> Status. The Signal Strength field should give it to you in both dB and ASU.