I JUST noticed this....
I read every line of my new car window sticker before I bought the Evo. Knew everything before I even drove the car. Nice little feature although I think Rain Sensing Wipers are better. My friends Mazda has it.
My old MazdaSpeed 3 had 'em too, along with auto on/off headlights and climate control. I miss the features lol.
Forsaken that is awesome... I was really disappointed when I discovered my girl's Sportback RA did this on ALL intermittent settings, so glad to know our Evos do it on one. Another cool thing the RA's do (So I'm sure the MR does with the SST as well) is that if you have the wipers on and you throw it in reverse it automatically swipes the rear windshield wiper 2 times. Kinda cool. 
One more thing that our Honda's (Acura's as well), Infiniti's and Toyota used to do were you could roll all the windows down and open the moon roof by holding the unlock key. The Infiniti's would also roll them back up and close the moon roof if you held the lock button. I was kind of hoping that all Japanese cars did that when I got the Evo. 
Every time I emerged from the I-90 tunnels the wiper would go three times as the sensor couldnt figure out the light differences. Ruined three sets of wipers inside of 6 months before I could fully document the problem and get U-Mazda to do a ride-along.
I use Trico Teflon blades which, IMHO, outperform PIAA's at 1/2 the cost and have excellent water wicking properties, but lack the snow/ice capacity (which isnt a problem as I have a garage at home and at work)
The PIAAs are silicone and you are encouraged to use them throughout the year. I haven't used the Tricos but I haven't used anything as good as the PIAAs. Not just the water wicking but the length of time at which they are effective. I've had the same PIAAs on my truck for more than a year and they still work great and bead up the water on the windshield.