Well it will kick up some dust, sure. Lance Armstrong's comeback is in the grand US tradition of retiring at the top yet seeking another "final" blaze of glory. Indeed it can't be easy to step out of the limelight and start a "normal" life, if cancer-survivor LA's life could ever be called normal. So a comeback - a well-planned, targeted one at that - could give LA another shot at proving whatever it is he's trying to prove. His innocence, perhaps?
He says he's clean and I take him at his word. He says it's for cancer-fighting publicity, but there must be something in it for him as well. Assuming he does come back, whatever the reasons, does he link with the cleaned-up residue that is Astana, banned from Le Tour 2008? Or does he seek a pure, clean break with the past? I hope the latter - but suspect he'll fall in with the "trusted" old Bruyneel team, irrespective. I'd like to be proven wrong on that.
Lastly, if he does join Astana and they get a berth at Le Tour (no guarantees there but probable), will he be top dog? One assumes so, but will it be the case if Contador has an edge in week 3? Contador's still young, so I suspect he'll roll over easily, but it won't necessarily be easy for him, either.