Heralding cellular services in the US as the success story of the 1990s to date, consultants Frost & Sullivan see the rapid growth continuing into the late 1990s achieving revenues of $17,000m by 1997 compared with an estimated $8,250m in 1992. The New York company’s report The US Market for Cellular Communications Services also says that the 7.4m subscribers at the end of 1991 should hit 26.2m by the end of 1997 with handset and monthly subscription costs falling as numbers rise. It sees steady migration to digital services, initito take pressure off analogue networks; digital revenues should hit $1,600m in 1997 from $7.1m in 1991.Dual-mode services combining analogue and digital are seen growing from $16.4m to $1,700m over the same period, as migration to digital progresses.