200 femto upgrades, plus you can also buy the Pulse with femto bundle (no limits shown, but delivery not until July 2014). As for the Lightspeed Jr. 2G, not sure that I'm up for it either. While I have some tolerance for the idea that a well designed USB cable will help, I'm still of the opinion that digital is digital. Jitter is the worst enemy, but I suspect the standard Lightspeed Jr. that already has twice the standard USB bandwidth will be more than sufficient. If the signal arrives cleanly, the 'bits are bits' argument can be used. In extreme cases you might be able to hear the difference, but not me with my deteriorating hearing (with age). I can still hear the difference between a single-ended and balanced system, but I'm not sure I'll notice the improvements from the femto and passive components. If we do get to the $1M mark and they offer active component upgrades, those can definitely be audible.
Interesting to see how these new perks work - I'm sure just the additional femto clocks and Pulse with femto bundles will help us meet the stretch goal.