Not having PGP is a severe restriction for several professional settings, hope this makes it in soon!
Just joined, looking for a good email client, but I agree with everyone here. GPG is a very critical feature. Before I even start thinking if I can help (I have some, probably enough, C/C++ background) - a quick question - was there any progress on this? Is there anything in particular you need C help with? Is there anyone ready to help with the JS side? I have some JS knowledge, but absolutely not familiar with the codebase.