As a family physician and tech nerd, I can say that in my experience peer review happens real quick with these types of apps. When you whip out your iPhone and a collegue sees you the conversation veers onto what apps are new and worth using, and which are utter crap. As for the content of popular apps, I don't think that even vetting by peer review would be able to eliminate all bugs. There will always be errors. But remember if used widely the axiom of a famous finn: "Given enough eyeballs all bugs are shallow." comes into play.

Just my $0.02: I have been running my server (named "JUPITER") SMB + Apache + Webmin on Ubuntu 6.06 LTS with LVM and RAID on an old Compaq Dual Processor SP750 with 256MB of RAM and a few 500 GIG PATA disks for over 2 years now. (Ran the same hardware under Fedora before) . The Network is an old 100/10.

Stability is SUPERBE --- system has NEVER crashed --- only downtime is when the power goes out or I go on vacation.

Speed is satisfactory --- everyone seems happy with the network. It just works.

Compatibility is GREAT --- 1 Windows VISTA , 1 Windows XP, 3 MacOSX and 1 Ubuntu 8.04 machines all use it. (even my DD-WRT based router has a share on the server.)

Cost is ridiculously low --- I probably couldn't give the hardware away without paying someone to take it... it's that old.

I've been wanting to upgrade my server to something newer and sexier, (why? ... because it's newer and sexier...) but my old system refuses to die, and it's so stable that I don't want to go through the trouble of an upgrade. FYI