I discovered Bebops maybe 4 years ago after a brief flirtation with SPD's. The SPD's didn't agree with my knees, I think it was something about float. I see where the 'on ice' feeling comes from, but it isn't an 'unsecured' feeling so much as it is that float - it gives your foot unrestricted 'twist' on the platform, the initial impression of which is less than solid. If you sit and play with it for a moment, you begin to feel that the bebop 'ice' feeling is all pivot - no 'slide off the pedal' feeling at all. I know this works for me because my feet actually DO pivot a little as I pedal. So the Bebops are a done deal under my sandals.
The two compromises the Bebop forces you to are shoe surgery, and scarcity. The cleat is large, which is good. It tends not to quite fit in the 'standard' cut out for a SPD cleat that you see in most bike shoes (the treaded ones for those of us who actually walk about a little bit. You need a half hour with an exacto knife to cut away at the edges of the insert hole a little bit. And because of that low clearance, you may need to cut away a little 'path' in your shoe's tread for the spindle too. Not a bad thing, and not hard.
Scarcity. No local bike store I have visited in three states carries Bebop for over the counter sales. You have to buy on the 'net. And if you get totally dependent on them, as I seem to be, you best buy ahead a little bit. If you like them, have an extra set of cleats in the bag when you ride. Costs about $40 now, but you won't find them at Bob's Beach Bikes when a cleat wears thin on you. I've not had a pedal wear out, but the cleats (what with a few hills to walk) do wear out maybe once a year, so it pays to have spares in hand.
I scored a whole set on an EBAY auction for $55 jsut the other day. Heck, I WENT throught the great Bebop scare of 2006! (They almost went out of production for a little while).
So buy some Bebops. Tell your local bike shop how great they are, and that they should stock them. Heck, tell Mark Powers that.
Cheers! ADC
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ADC - The right bike is the one you will ride.