Yes, the Welcome wizard will teach you to use the gestures/UI. You can also access the same material from Tutorial app.

I don't know what is your purpose for these messages. If you are truly concerned, you can try to help Mer and Jolla people in many ways.

Based on your definitions iPhone, Android and Windows Phone have all been total failures. iPhone was so bad at the beginning that Steve Jobs' lauch event for iPhone was very precisely planned and written. For example Jobs changed iPhones multiple times during the event so people wouldn't see iPhone actually crashing all the time. Even WP/Lumia cannot hold your definitions.

There has been problems with Jolla and I hope that Jolla's people will fix them soon. I will be writting some feedback for Jolla when I have time. Hopefully soon. I want to influence to the journey of Jolla.

Of course there are going to be bugs, the Jolla device/SailfishOS combination is in beta phase. I am even collecting a bug list here so the glitches can be collected and solved easier.

However, what I have not yet once encountered is spontaneous crashes/boots. I do not understand where you get those from

About the UI concept; I use N9/Harmattan extensively, as it was my only mobile OS for 2 years before Jolla, and I find the Sailfish gestures very familiar, an extension of what I have been using all the time. The UI is very easy to use and adapt to, and really natural for me.

I hope Jolla gets the hint, that collecting bugs that way instead of a proper bug tracker doesn't look good for them

So, Jolla, what are you working on now? 'There are things that the world hasn't seen yet' ZDNET

Regarding E-Mail sync I've got a question: Why is for instance the iPhone able to receive emails as soon as they come (don't need to set a sync intervall) and N9 (and Jolla) aren't. What differences are there that the iPhone is able to do it and Jolla not?

It uses push. Perhaps even this: http://en.wikipedia.org/wiki/Push-IMAP

I am not familiar with iPhone, does it work that way with all accounts or does it need some "special apple email account" to work with; specifically what is the mail protocol used?

What I use myself, is maybe the most common portable combination, imap/ssl for incoming mail and smtp/ssl for outgoing mail. IMAP is a client-originating protocol, so the client needs to poll the server for mail.

Either apple uses some server-notification method or it polls the IMAP server with short interval (few seconds?) for incoming mail. If it is the latter, I am sad for the battery usage

I found gestures difficult to understand when someone else (from Jolla) presented those. I tested few of them with demo phones on Wednesday and already earlier two weeks ago, but it still felt like learning curve is significant. Wednesday when I got my Jolla I did exercises in wizard (available in tutorial app too) and since that this has been the most intuitive UI.

I love that you can use this with left or right hand and all gestures work naturally with both hands. I even switch the Jolla from hand to another depending what else I am doing while using it.

Browser experience is currently a disappointment. It lags and same intuition is not tangible in that app. Of course same gestures work, but I would expect to be able go pages back and forward just by swiping and that location bar and other controls could show up just with simple tap and other simple gesture. May be I will learn but currently I feel some inconsistency in the browser.

About battery lifetime.

9:30 (EET) this morning I took my Jolla from charger with full 100 % charge. I installed Skype (Android app) from Amazon AppStore and chatted with a friend for 10 minutes and browsed different settings may be 15 minutes.
11:30 battery level was 85 % after being rest if the time idle
11:55 I switched Location OFF from settings at battery level
76 %
12:26 battery level 1 % down since switching location off
12:30 my Jolla started jamming so badly I had to restart it. Battery level 72 %. I used phone to read twitter notifications and to use twitter with browser for 20~30 minutes (WiFi).
13:42 battery level 69 %
17:00 battery level 54 %. reading messages 15 minutes while connected via 3G. Download and installation of What's my IP address from Jolla store (3G and Jolla in moving car).
19:14 battery level 35 %
19:25 battery level 33 %. Playing with display brightness settings and switching to manual and minimum. I can barely see any difference between minimum and maximum.
20:29 battery level 26 % after 3 minute Skype audio call and idling an hour.

But wouldn't this mean that the device has to be on DCH (or at least on some common signalling channel) all the time, it would reserve radio resources all the time...?