PowerApps Canvas has a powerful control for attaching files, but the UI really sucks.  

I would like a an attachment control that allows the developer to configure how the attached files will display within the control.  The existing control lists the attached files vertically.  So to if you expect to have more than a few files you will have to expand the control vertically.  I am always crunched for screen space, so being able to have the control display the files in like two or three columns across would be a life saver.  

with output for Characters used and characters remaining (remaining being field size less chars used).  Hopefully a simple control that someone can knock up  pretty quickly

Implement ACE editor for multiline text to allow for good presentation of script snippets stored in dynamics. 

https://ace.c9.io/#nav=about&api=virtual_renderer

Add a control to integrate the "Intercom" support chat solution, its just a JavaScript with some options, should be rather easy...

ability to view zip file contents in annotations without downloading the zip folder

Scenario: I have a Student entity. Each student can have one ore more Certificates. Certificate entity has an image field, where I upload scan of the certificate. By default, I can add a subgrid to my Student form to show all certificates of Student. However, I would like to have a "carousel" view of Student certificates: thumbnail image (scan of certificate) on top, attributes below the thumbnail.

We need very similar component as the Radial Knob for number fields is, but with a possibility to select colors for [MIN] and [MAX] values with a gradient between them

I'm asking for a little love on our Judas field Multiselec,  you may not love him but have mercy on his FieldSoul.

I'm convinced one day, it will be better...or I hope

Anyone ?

It would be good to have a control where it allows to restrict past or future dates in datepicker!

Would it be possible to create custom control for MultiSelectOptionSet? Something like the existing one for standard optionset, but we would need it for multiselect.