hey graham…
i’m trying to answer your questions as good as i possibly could…
- webmail? you could install a rainloop-app. which is supporting views for mobile clients as well. but it’s just to check your emails and answer them. not to manage your accounts…
- shared calendars? yes
- bookmark server? no and yes. a very basic bookmark-app is available. but so far w/o support of directories and such. and i’m afraid… no “server” at all. but they are working on it.
- backup? well… of course you could upload your data to your (local) NC-instance but NC isn’t a whatsoever “backup”-thingy.
best would be you’d take a look to @JasonBayton’s demo-instances of NC here → Demo instances of 9-14 now live
hope that’ll answer your questions… at least a bit.
good luck
jimmy