The SPUs are nothing more than streamlined FPUs (just read the Cell vs. Xenon comparisons on ArsTech).
If you ever had a use for an FPU on your Miggy, then you know that apart from some very dedicated work the interest of an FPU is marginal at best. By the way, the 360 has only two of them, yet it's more than enough for any power user (let alone the average gamer).
Unless you have a need for an Amiga-based datablade cluster, any reference to the PS3's SPUs is just a naive sales pitch.
