Some back of the envelope calculations follow. Valverde might rue the day he didn't work with Moreau. The days of yellow for the chicken might be numbered, and he might finish a few rungs beneath Menchov in the GC.

If you flip back through prior TT performances, like last year's TdF, you'll find that the patterns from this year's prologue are no fluke. Evans gave up 3 minutes to Klodi in the second 57 km ITT.

The race of truth? We will see...

Rider    Prologue Speed (kph)
Kloden    52.38
Vino    50.79
Kash    50.34
Evans    50.25
Levi 49.89
Menchov    49.81
Valverde49.55
Moreau 49.12
Sastre    48.53
Chicken    46.85

If we project 95% of the prologue speed to the TTs the time gaps to Kloden by the slower guys are:

Rider    Klodi Deltas (min)
Vino    2.04 + 2.08 = 4.12
Kash    2.64 + 2.69 = 5.33
Evans    2.76 + 2.81 = 5.57
Levi 3.24 + 3.3 = 6.54
Menchov    3.36 + 3.42 = 6.78
Valverde 3.72 + 3.79 = 7.51
Moreau 4.32 + 4.44 = 8.76
Sastre    5.16 + 5.25 = 10.41
Chicken    7.67 + 7.82 = 15.49