It's great to see that there's a road map for migrating those widgets
to the trunk!  We can use most of those features now (in particular:
Validation, Slider, ProgressBar, Graphics, and Locale selection).

Can we still expect to see a 2.0-compatible version of the current gwt-
incubator.jar?

On Jan 12, 10:05 am, John LaBanca <jlaba...@google.com> wrote:
> Incubator Users -
>
> The Google Web Toolkit Incubator project began as a proving grounds for new
> widgets to be vetted before joining the ranks of the GWT trunk. We've seen
> some success stories over the last year with EventHandlers, ClientBundle,
> and DatePicker, but for many of the widgets and libraries, Incubator has
> become an elephant graveyard.
>
> In order to address this issue, we will start graduating some of the
> libraries to GWT trunk, move some into separate projects, and discontinue
> development on others. Ultimately, we will wind down the incubator project
> completely.
>
> The schedule below shows the fate of each subproject in incubator. It's a
> tentative schedule, meaning that it could change as priorities shift.
>
> GWT 2.1
>
>    - *PagingScrollTable and FastTree*
>    We are working on a new set of data backed widgets for GWT 2.1 that will
>    include APIs for trees and tables. We will build upon the lessons learned
>    with these incubator widgets, but the API for the new data backed widgets
>    will evolve significantly from the current APIs. When the data backed
>    widgets are added to GWT trunk, we will stop development on
>    the PagingScrollTable and FastTree.
>
>    - *Locale Selection*
>    Selecting the locale on the server requires one less round trip to the
>    server on startup and is needed for effective use of
>    runtime locales selection.  This library will be included in GWT 2.1.
>
> GWT 2.2
>
>    - *CollapsiblePanel*
>    This widget will probably become a subclass of DockingLayoutPanel,
>    similar to SplitLayoutPanel.
>
>    - *SliderBar and ProgressBar*
>    Both of these widgets currently require the use of a global timer, which
>    has performance implications. If we can implement these without a resize
>    timer, we will include them in GWT 2.2. If we cannot, we will discontinue
>    development on them.
>
>    - *Logging*
>    The logging API may make it into GWT 2.1 if time permits.
>
>    - *Form Validation*
>    We will take a closer look at the form validation API in GWT 2.2..
>
> Separate Project:
>
>    - *SoundResource*
>    SoundResource is a promising API for including sound in an application,
>    but it makes sense to wait for HTML 5 features to become widely adopted
>    before including it. We would like to move SoundResource into the 
> gwt-voices
>    project:http://code.google.com/p/gwt-voices/.
>
>    - *Graphics*
>    The graphics library provides a single, platform independent API that
>    works on top of Canvas and VML. The library is not ready for GWT trunk, but
>    this project is worth pursuing.
>
>    - *HtmlDecorators*
>    We will continue to work on this project to arbitrarily add decorations
>    to widgets.
>
> As always, please feel free to reply with comments or suggestions.
>
> Thanks,
> John LaBanca
> on behalf of the GWT team
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