Hmmm... hasn't thois topic little derailed from its original subject?
Anyway, just my 2 cents on discussions here:
1. AmigaOS 4.1 on SAM440EP is just a replacement for ageing Amiga classic computers with frankenstein expansion boards and tons of system hacks which make them barely intellegible/usable and some sort of "poor men's modern computers" using obsolete but pricey features. What makes this solution "more Amiga" than others is the official support for AmigaOS 4.1. Yes, I mean 'official' because unless Hyperion loses the trial, they are the authors of the software, so it's their right to decide who is gonna use it.
2. At this point of the Amiga situation, everything about "what's Amiga, what's not" is questionable. From my personal point of view, for istance, everything that acts like Amiga and has born within the Amiga community *is* far more "Amiga" than Amiga Inc's actual products (this, unless you think that the AmigaDE and the poor games they're selling are Amiga). So if you're asking me what Amiga I do own today, I'd answer that my actual miggies are my Athlon64 AROS machine and my AmigaOS 4.1 SAM440EP. And IMHO they're both Amiga, even if Amiga Inc. had not endorsed or recognized or licensed any of them. Oh, there's also my copy of Amiga Forever and my old dismissed A1200, but I rarely (almost never) use them.
3. Since I use both AROS and AmigaOS 4.1 I can see their pros and they cons. There are things better done in AmigaOS 4.1, but also things that were better made on AROS. For istance, try to place a PC cdrom on both operating systems, and while in AmigaOS you'll be forced to choose "all files" view in the Window menu, AROS will choose this view automatically, due to a precise design decision took while developing it (AROS uses view > all files on any volume that has no amiga disk.icon file in its root - this will be helpful when Michal has completed his mass storage bounty too). InstallAROS is also far easier to use than AmigaOS 4.1 install procedure. For the rest, AmigaOS is far more complete, but there were people hired and paid to code it, and Hyperion could start from original Commodore sources, which helped a lot.
4. A comparison between AROS and AmigaOS doesn't make so much sense, since one is opensource and the other not. Everyone with proper skill might improve AROS as he/she likes. AROS is not a competitor for AmigaOS, since there is no company targeting their products to the same AmigaOS potential owners.
5. All in all, both AROS and AmigaOS are flawed by an ageing structure and an almost useless API for today's jobs. We can continue adapting ourselves to use ported or rewritten applications, in order to painfully do things that users of other platforms can do in a single click, choosing from dozens of competing apps, using cheap and far more powerful hardware. Other platforms are aiming to hybrid calculations model based on the use of both CPU and GPU (just look at what OpenCL, CUDA and DirectX 11 are), while we're still looking for transparent borders in windows, or enjoying an almost-useless memory protection model in the latest release of the OS (15 years after any other OS got it). Evolution urges.