[secondcoming]

Techview was a barebones UI used by Symbian devs on the x86 emulator and ARM reference boards (TI OMAP H2 and H4). It never appeared on any phone.

[edderly]

Indeed. So imagine doing performance profiling on a 90s UI framework from Psion and then getting feedback from S60 three months later after an integration cycle that you have a core perf or latency problem.