I use WM6 ROM by GnatGoSplat (LINK), which breathed new life into my little phone. I also develop my own software in MortScript called JZ SmartMort, which helps SmartPhones/PPCs be more productive with copy/paste/clipboard history/multi-web-browsers/favorites/java, etc. When I had WM5, my software worked like a charm and I was able to copy/paste EVERYWHERE, including JBed textboxes like in Opera Mini. As soon as I used WM6 & WM6.1 ROMs, my program stopped copying and pasting which really killed my productivity but I absolutely had to leave WM6 on my phone because it's so much faster. So after trying a thousand things, I finally figured out that Tegic's eT9 IME keyboard driver is not the same animal as T9: because using T9, you're able to press any key combination of keys (Control-C, Control-V, etc.) while controlling the device from a MortScript or from a PC using MyMobiler. When eT9 is the IME driver, copy/paste did not work at all.
Tegic is the company who write the driver for HTC, this CAB is T9 (a.k.a. classic T9) ----VERSUS---- the newer xT9 (a.k.a. eT9), on WM 6.x and above which is not compatible with standard copy/paste keyboard shortcuts.
So --- I dumped the original WM5 ROM from HTC to disk and grabbed every file that met this criteria "\Windows\T9*.*" threw it into a CAB and added the registry entry (HKLM\System\CurrentControlSet\Control\Layouts\e001 0409\IME File) to switch over to the T9 dll file, replacing the newer but inferior eT9. If you uninstall the CAB offered on this thread, your original/newer eT9 driver will return.
After installing this CAB, all T9 functionality should be available. Soft-reset is recommended but not necessary, however, T9 will only be available to newly launched apps. After you do a soft-reset, all apps will use T9.
This CAB is for US-English (1033/0409) locale. Should only work on non-QWERTY SmartPhones (just dial-pad) Obtained this driver from Cingular 3125 ROM (HTC StarTrek -- here's a picture of it). IME driver is Tegic T9 for WM 5.0)
Post #8 suggests that this driver also works for BenQ E72. My guess is that it also will work on Pantech devices.