Hi, I'm a full-time Delphi Developer (from D1 back in about '95, currently spend most of my time in 2007 but have XE2/FireMonkey etc all installed and ready to explore).
I'd be quite interested in using Delphi on the Pi too. I've recently been picking up bits of Mono (C#) and Python to help get some jobs done on Ubuntu, and my assumption has been that I'd need to use Python, Java or Mono to develop stuff on the Pi too.
I've used Lazarus on Ubuntu, a long time ago, and decided it fell a bit short of what I had hoped it would be but in fairness this was perhaps 3 years ago and I know it has an active community so I expect it's changed a lot since then!
Nothing really to add to your topic other than to mention that there are Delphi developers hanging around here, if nothing else