I just overclocked my Milestone...
UK 2.1 ROM (SHOLS_U2_02.31.0)
Apps2SD installed (1gb Ext2 Part) on my 8gb Class4 card
Tried overclocking upto 1200Mhz. All worked, but have decided to scale it back a bit to 800Mhz for daily use.
Also running SetCPU with profiles set.
Benchmarked with Linpack @ 800Mhz (MFLOPS: 6.506; Time 0.83sec)
Looks good so far.
I will now try to install JIT.