Well, the intent with H/PC Pro was to migrate to the VGA and SVGA displays. (Only HP and NEC issued new models with H/PC Pro and 640x240 displays.) That was when SH4 came out. I'm a little surprised that Hitachi didn't try the SH4 with H/PC 2000 or later non-platform core versions of CE. (A few software makers wrote SH4 versions of their programs for CE 4 devices, in anticipation of its continued use in newer devices.) But the SH4 came in with a roar and went out with a whimper (to use another weather expression) shortly thereafter.