My first attempt of a logo (because something is better then noting at all) was a couple of Google image searches coupled with a few minutes of editing:
Next, I commissioned my favorite artist to sketch some ideas for me. Here is what she came up with:
I gave some feedback on these ideas, to converge in this direction:
I then did a quick test to see how adding the text might look:
I think the cloud position needs a little tweaking, and the individual clouds needs a bit of re-shaping to fit the text. I also asked the artist to use her own style when incorporating the text. I think that will look a lot nicer than a standard font.
What do you think?