There was also some additional expansions available, for example a modem plug-in module. But one major disadvantage, the 52 characters/line instead of 80 characters/line, was still there.
In late 1982 Osborne presented the Osborne Executive, which was an inprovement (with a Z80 4 MHz), but the 7" screen was still too small.
Also, they announced the Osborne Vixen a few month later (planned for 1983), and that was the reason people stopped ordering current Osborne Models. But the competitor, the Kaypro II and later IV from Nonlinear Systems, was already available with a 9" screen.
So this new model never reached the market (IBM PCs where introduced at that time also, so it was anyway a difficult time for Osborne).