Oh yeah, forgot to add are my Xbench results, in par with the OP's:
Results 122.04
System Info
Xbench Version 1.3
System Version 10.5.6 (9G55)
Physical RAM 2048 MB
Model MacBookAir2,1
Drive Type SAMSUNG SSD Thin uSATA 128GB M
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Disk Test 104.51
Sequential 95.97
Uncached Write 132.30 81.23 MB/sec [4K blocks]
Uncached Write 125.39 70.95 MB/sec [256K blocks]
Uncached Read 48.51 14.20 MB/sec [4K blocks]
Uncached Read 180.77 90.85 MB/sec [256K blocks]
Random 114.71
Uncached Write 44.19 4.68 MB/sec [4K blocks]
Uncached Write 108.00 34.57 MB/sec [256K blocks]
Uncached Read 1240.27 8.79 MB/sec [4K blocks]
Uncached Read 459.61 85.28 MB/sec [256K blocks]
I've been using the SSD for a week now and really love it, although I'm not sure I'm seeing too much battery improvement yet?
All and all a worthy mod, but in light of the price drops this past week, you might in retrospect be better off upgrading to the revC.