if you have a Nexus5 that absolutely wont work. Nexus5 cannot to Qi while OTG cable is in
Interesting, like aznpos531 said, I too thought Qi + OTG would work, if it doesn't work with the Nexus5, I doubt it will work with any phone.
Herein lies the crux of the issue, we're finally coming to a point in technology where people are trying to replace their desktop PCs with phones.
Everyone knows this was going to happen, nobody knows exactly when. At some point phones will completely replace desktop PCs, and dock into monitor/keyboard/mice stations.
Unfortunately, phone hardware manufacturers aren't on the same page. A basic function of any electronic multi-purpose device, is to have peripherals connected (input/output devices) for the end user. One ubiquitous device is the DAC, aka soundcard, the topic of discussion in this thread.
It's a shame phones don't have the capability to charge while having essential peripherals also operating at the same time. Trust me though, it will happen, most likely sooner than later.