Hmmm
According to Anandtech, in an article dated Aug 30, 2009
http://www.anandtech.com/storage/showdoc.aspx?i=3631&p=19&cp=22
All the SSDs in Macbooks and Macbook Pros are Samsung.
And according to Xbench, the performance of my SSD, with more than half the drive apparently empty has already dropped significantly (but I can't feel any real world difference):
Results
144.85
System Info
Xbench Version 1.3
System Version 10.6 (10A432)
Physical RAM 4096 MB
Model MacBookPro5,5
Drive Type APPLE SSD TS256A
Disk Test 144.85
Sequential 98.32
Uncached Write 112.94 69.35 MB/sec [4K blocks]
Uncached Write 78.95 44.67 MB/sec [256K blocks]
Uncached Read 67.66 19.80 MB/sec [4K blocks]
Uncached Read 228.26 114.72 MB/sec [256K blocks]
Random 274.92
Uncached Write 233.38 24.71 MB/sec [4K blocks]
Uncached Write 133.33 42.68 MB/sec [256K blocks]
Uncached Read 1057.49 7.49 MB/sec [4K blocks]
Uncached Read 549.68 102.00 MB/sec [256K blocks]
Down from around
190 only a few days ago.
Philippe