Toshiba Corp has been so successful with its lap-top computers that the announcement of Unix for its T5100 legitimises Unix on a lap-top and Grid Systems Corp, Fremont, California has leaped in to say that its battery-powered 80386-based GridCase 1530 will be offered with both Santa Cruz Operation’s Xenix System V and Interactive Systems Corp’s 386/ix Unix at the UniForum show next week. The 1530 comes with a variety of storage and screen options including up to 8Mb RAM, a 29mS 40Mb hard disk, a gas plasma display and internal 2,400 bps modem. Grid Systems signed to remarket some Toshiba models early last year.