I wouldn't use SOS on a bike light. I think the low-med-high settings are all most people need/want. I am not too sure about strobe, what do most people use it for and how often do they use that?
P.S.:KiwiMark ... please don't feel like I am attacking you ... I am not. I just feel strongly about those UIs that ruin the flashaholic fun of a lot of lights for me.
I have now altered mine to: off-low-med-high.
The only negative is that a novice will be unlikely to reprogram the modes and will just have the 3 defaults, whether they want the strobe for the 3rd one or not.
Keep in mind that JetBeams are only sold through one distributor in the US, and aren't available at any B&M store; Novices won't be seeing any of these.