I worked for Nokia for a brief moment in time and the Nokia E71 (or another in that line) was internally codenamed "BeeBee" (like: blackberry) which was comical to me given that the phone looked a lot like a contemporary era blackberry.
It was slow and buggy, but it felt like a handheld computer.
Qtek rebranded to HTC and I bought a HTC Touch running Windows Mobile 6.0, I am not sure when or what I switched to afterwards, maybe an Android.