It would be nice to have a button to see the editor in full screen.

It would be nice if there was an additional dropdown in the Editor that was populated with CSS classes in my .css file.  It would allow users of the application to style articles and other text consistently by simply selecting predefined styles for that layout.  (Hopefully this isn't a duplicate)

It would be great if there are customization of categoryAxis label when ploting has both +ve and -ve values. 
The label need to be settled down at bottom (base line) automatically when there are negative values and same for +ve values.

When hovering over a chart legend item, it would be nice if the underlying series/data item in the chart could be highlighted in a similar way as when the mouse is over the series/data item.

Templates can currently be used in chart labels. It would also be nice if templates could be applied to the chart legend.

Kind of common header to few columns

If I have a list view, and I want users to be able to drag and drop to re-order things. A config option of reorderable that would use your drag and drop kit would do the trick.

Add ability to insert SVG html into Kendo Chart areas like the title. Example would be ability to add my own TSPAN to the title to help style it more.

This will allow the person  viewing the page to get rid of unwanted columns.

We can do it using JQuery getJson or .ajax calls but would be good if everything gets unified inside Datasource so all on-screen controls can be bound to a datasource not a specific control.

Improve the xml parser so it can handle missing data that is sent in a shortcut manner.  For example, NAME is blank or missing:

<NAME></NAME>

Shortcut manner is

<NAME/>

A Calendar control for Kendo UI Mobile would be awesome.

It would be nice to config a validation message to either hover or be in-line. It can be accomplished with some extra CSS currently, but it would nice to just pass in your preference.

It would be nice to have a GroupBox widget that we could enable/disable or make visible/invisible groups of controls easily.  Would also be nice to populate via Ajax.

Instead of pulling the validation message from the Title attribute, use the title in the formatted message. For people who are trying to write localized messages, this could be very beneficial since they can just replace the title with the correct field name and change the message in the options.errors just once for the localized error message.

   _extractMessage: function (input, ruleKey) {
        var that = this,
                customMessage = that.options.messages[ruleKey],
                fieldName = input.attr(NAME);

        customMessage = $.isFunction(customMessage) ? customMessage(input) : customMessage;

        return kendo.format(input.attr(kendo.attr(ruleKey + "-msg")) || input.attr("validationMessage") ||  customMessage || "", input.attr("title") || fieldName, input.attr(ruleKey));
    },

Please document that using "validationMessage" as an attribute in a validated control will allow you to have a custom validation message while having a "title" defined. Also, indicate that "Title" will be used if no "validationMessage" is defined.

The mobile tabstrip is not scrollable and the stacking that takes place when the viewpoort is too narrow to contain all the tabs is unsightly and grabs precious screen real estate

would be nice to be able to manipulate the grid itself before to data is loaded (wich eventually takes some time).
some manipulations on the grid seems to be irritating, if they are not happend till the full datasource is loaded

It’s a web application without server side, which use google javascript Client API to provide additional tools for google calendars management like :
- batch deletion
- generation of recurrent sequence of events.