#280 Not bad. You got something there - I got interested by looking at it. I have to consider this one for a bit to be able to give som constructive feedback.
My idea was to create an image that would invoke thought as to whether it is shifting from something with an eye to something else or from something else to something with an eye. Also it combines the O shape and the S shape, so it works for both versions.
#280 I like the physical feeling of the handle and the almost retro style like a part from an old typewriter. Or something from Tim Burtons "9" http://www.imdb.com/media/rm2226948352/tt0472033 or something from the Myst / Riven games. I like it but I don't think it would work for a larget audience. #292 looses a bit of that charm - the shape isn't as nice.
and of Baltazar http://ladyj112.xpy.se/wp-content/uploads/2009/01/baltazar23.jpg It is important that the logo does not represent mechanical or chemical industry - much of our designs are features for mobile industry, user interfaces and interaction. Modern cool stuff.
#304 is very skilled done - and I like the idea - but it would be better in baltazar-style, and more iconic.