March 25 - 4:15pm EDT   New lawsuits have been filed by Typhoon Touch Technologies against the makers of tablet PCs, accounts say. The company first gained attention in December of last year, when it accused prominent computer builders Dell and Motion Computing of violating patents used not only in tablets, but also in smartphones and UMPCs. The new suits are targeted exclusively at makers of tablet PCs though, and name Electrovaya, Xplore Technologies and Sand Dune Ventures (a.k.a. TabletKiosk) as the defendants. [full story]