Apple Computer Inc also duly previewed its first PowerPC-based servers, the 601-driven Workgroup Server 6150, 8150 and 9150. Apple plans an implementation of AppleTalk specifically designed for Windows 3.1 up as the basis for new collaborative services. Apple will offer PowerPC board upgrades for existing 68040-based Workgroup Server 60 and Workgroup Server 80 customers and Macintosh Quadra 900 and 950 customers wanting to upgrade to a Workgroup Server 9150. The Workgroup Servers and PowerPC 601 upgrades ship next month; the 6150 is $4,220, the 8150 is $7,460, $8,500 with AppleShare. The 9150 is from $9,230. The upgrade for a Server 60 is $1,260, for a Server 80 $1,900. The Macintosh Quadra 605 8/160 is cut 16% to $1,070; prices on 68040 Workgroup Servers stand.