An interesting email thread is ongoing about Top ten myths which try to harm the reputation of Open Source GIS efforts. Michael P. Gerlek edits a Wiki page collecting the top ~10 myths and misperceptions:
https://wiki.osgeo.org/wiki/Top_Ten_Myths

Especially striking the Eduardo Kanegae‘s comment:

In 2008 I worked on a project all based on ESRI 9.2 family. At that
point I didn´t know much of ESRI products and had only worked with
foss products. Now I feel more confortable to give an opinion for
that:

# myth monopoly : every only remember the (supposed) 30% esri market
share. Remember there´s also very nice commercial products like Safe
FME, CadCorp, ManiFold, PCI, ERDAS, ENVI and others ( and sometimes
most of these are embed on ESRI packs - eg.: raster support on AG
family )

# sustainability : while every major release of ESRI will force you to
re-develop your customizations, FOSS products keep release more
compatible. Example: a MapServer 3.x developer will use the same
principles and concepts on MapServer 5.x version. But, an ArcIMS
developer had to change its base when upgrading to ArcGIS Server 9.1,
recode for adapting to ArcGIS Server 9.2 API´s and now all this
concepts will change again with 9.3 version.

# maintenance : foss product will run more closer to open standards (
eg.: OGC´s ). So, you change foss parts without re-coding your entire
solution. The cost of training a new human resource on
insert/update/delete geo-feature using ArcObjects/ArcSDE is so much
higher when compared to OGC-SFS, per example.

# support : while on FOSS communities you can have a reply on minutes,
on 'esri forum' you can your topic open for months (
https://forums.esri.com/Thread.asp?c=158&f=2284&t=251001 ,
https://forums.esri.com/Thread.asp?c=158&f=2290&t=253698 ,
https://forums.esri.com/Thread.asp?c=93&f=985&t=270205&g=1 ) and NEVER
get a solution. In my sample, we discover a bug on ArcSDE/ArcMap
9.2sp4 but this will certainly NEVER be fixed because sp6 didn´t fixed
and ESRI will probably only look for 9.3 developments for now and on.
Because non-US customers CAN´T contact ESRI directly, we can only keep
suffering with poor local support.

best regards,
--
Eduardo Kanegae

Not much to add at this point…

The new winGRASS 6.4.0RC2 is now available! It has been packaged into the OSGeo4W installer which also provides QGIS, Mapserver, GDAL and other goodies.

OSGeo4W has two modes – express and advanced:

  • “Express” gives you a short list of suggested packages to select from which have been widely tested.
  • “Advanced” gives a long detailed list of packages and subpackages including development versions and so forth. For the moment GRASS is available in the “advanced” install. After a period of testing it may be moved to the “express” section.

OSGeo4W Installer download:
https://download.osgeo.org/osgeo4w/osgeo4w-setup.exe
Please download it and test. The wizard will guide you through the installation process.

Find GRASS in
Advanced -> … -> Select Packages
All -> Desktop -> grass & tcltk: ActiveTcl wxpython (just click to select) -> Next …

Feedback is appreciated in two “channels”:

OSGeo4W installer related issues:

GRASS related issues:

Update 24-Jan-2009: The package was fixed to support the new wxpython graphical user interface.

BTW: The OSGeo4W team is seeking a new GRASS package maintainer, we hope to find a candidate soon – please speak up.

A second release candidate of GRASS 6.4.0 is now available:

https://grass.osgeo.org/grass64/source/
https://grass.osgeo.org/grass64/source/grass-6.4.0RC2.tar.gz

To get the RC2 source code from SVN:
svn checkout https://svn.osgeo.org/grass/grass/tags/release_20090112_grass_6_4_0RC2

An announcement has been drafted at
https://trac.osgeo.org/grass/wiki/Release/6.4.0RC2-News

All news will be merged into the final announcement later.

Key improvements of the GRASS 6.4.0 release include enhanced
portability for MS-Windows (native support), hundreds of fixes,
the new wxPython based portable graphical interface and much
new functionality.

Release candidate management at
https://grass.osgeo.org/wiki/GRASS_6.4_Feature_Plan

Please test, test, test…

Thanks to all contributors!

Markus