That demands a clarification because I write computer programs, which I consider to be 'productive', and I hardly need a pointing device. I wonder if people were equally sceptical of mice catching on.

> Any work involving accumulation of material from multiple sources (e.g. research) i.e. multitasking, is going to benefit from a larger screen form factor.

Give me multitasking, sure, but I very, very rarely have multiple windows of separate applications showing; I might just have a weird workflow, but it just doesn't demand it, and I like having individual windows maximised. Maybe I (think I) find it less distracting.