I've decided to succumb to a marketing impulse and create a brand for my research group. I decided to call it "HatSwitch," because we do research into both intrusion detection and privacy enhancing technologies, and we often use the same tools, just switching hats. Any brand, of course, deserves a logo as well, so
fanlain and I spent some time this weekend working on one. Here are three versions:

Poll #1029847 Hat switch
Open to: All, detailed results viewable to: All
We both have different favorites, but we're not going to say what they are to avoid influencing your votes!

Poll #1029847 Hat switch
Open to: All, detailed results viewable to: All
Which logo do you like?
View Answers
Black and white hat![]()
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17 (35.4%)
White hat![]()
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16 (33.3%)
Just the text![]()
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6 (12.5%)
None of the above![]()
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12 (25.0%)
We both have different favorites, but we're not going to say what they are to avoid influencing your votes!

Comments
http://ambigram.matic.com/ambigram.htm
However, the backwards "h" - probably because it's in a difficult phoneme - makes it more difficult to read, and as someone else said, "rubs me the wrong way".
I also am not sure I like the black on top, white on bottom look with the hat divided by the name. It looks like a mountain (or maybe a bimodal graph, which for some applications might be appropriate) instead of a hat.
What if you did left-right black and white (half and half) and put the name underneath? Still doesn't "help" with the backwards "h". And I do like the general idea of having the word in the middle of the hat, dividing it. Hmmm...
Sorry to be so full of negativity today, but I have strong opinions about what works and doesn't work in the areas of organization (virtually nothing I've tried) and logos (lots of things, but I think this one could use some modification). Also, I could use more sleep. ;)
http://www.arbys.com/
I also think a vertical split for the hat color might look better, and you could maintain legibility by having the text be white-on-black over the black part and black-on-white over the white part. Of course, you wouldn't want to switch colors in the text more than once, so you could, for example, get the full word "hat" to be white-on-black and "switch" to be black-on-white. Or something.
Also, with it being all lower-case, it's possible to parse it as "hats witch" -- putting the color change at the intended word break would help avoid that.
I voted for the white hat, but almost voted for the black and white one. I like the idea of the black and white one better, but I think that logo needs more work. The hat isn't quite integrated with the text... I'd fool around with it some more, but you're on a good track.
But I love the concept!
I think one reason the reversed "R" works in Toys R Us is that a reversed R can't be read as any other letter.
I guess another option on the original is the have a white hat with a black brim. Might work, although I think the one with two hats is excellent.