I have tested all my systems developed in Delphi (in Windows XP) on Wine (OpenSuse Linux) and they work perfectly. My question is: should I start distributing my systems (on a local basis that I can support) as Wine ready or are there other issues I should take into account?
You could do what Google does and package Wine with the application. That way there's no fear that Wine will change something in the future and prevent your app from working.