Took delivery of an Aluminium 8 speed (SRAM) Xootr Swift a week ago, here in the UK, and am very impressed. I wanted a great riding bike that folded - not a folder you could ride and the Swift fills the bill.
So far I have fitted Ergon R2 bar ends, changed the saddle and pedals but that is all. I love the look and ride of the bike. I also own several "conventional" racing bikes which have now been made redundant because I connot keep off the Swift! The large diameter down tube has meant that the QR racks will not fit but I will be using a Carradice SQR seat pack which attaches to a bracket which clamps to the seat tube. I have checked and if I mount it just below the saddle the seat tube will still slide down when the bike is folded and hold the package together enough for me to put it in my car.

I have also found a "clip-on" bottle cage which has a quick release fitting. It is a KF Performance model made of tough plastic (or something similar) and the QR bracket can turn so that the bottle cage can fit to 'bars or stem riser. When fully unscrewed it also clamps to the seat tube (with a bit of a shove) and the QR lever secures it. I prefer to have the bottle on the seat tube and the cage can be quickly removed to fold the bike. Up front I have fitted a "T" bar to the riser and attached my 'bar bag to it. The "T" bar is a more rugged version of the Minoura gadget which clamps to the 'bars to accommodate lights. This one slides down the 1 1/8th riser and is clamped like a stem. It means the 'bar bag leaves the 'bars clear, does not interfere with the break levers and it keeps the centre of gravity low. Both items were sourced from www.sjscycles.com here in the UK. I am not sure how many Swifts are over here but I love the thing and am already planning to clear out my stable of other bikes. This little gem is perfect for my riding which is generally day rides in the nearby countryside. Being able to slip it into the back of my car will enable me to cycle in other locations. It is one great little machine!!