What is possible today contains links and images, but it is NOT an HTML signature. I would like to paste HTML code generated elsewhere for use as a signature so that all of my correspondence has the same signature, no matter where I send it from.

Hi guys,

So our developer says that we do support html-code for signatures, but unfortunately we don't have a signature editor, so currently users need to create the signature-code outside Nimble.
Then you can paste it into Nimble's signature text box.

Here's an example:
http://www.screencast.com/t/AWxAj41NQHwK

I hope this helps!

Or something like Gist offers for the less HTML-sophisticate among us. Seems like adding social profiles to our signature is right on point with Nimble's mission. =-)

I get plenty of clicks to my website from the email signature. A necessity.

Agree - Nimble's email client should offer comparable features as other email clients. Consistent branding is important.