I love GUIs (graphical user interfaces)- they might be TCL/TK based or GTK based or even QT based. As a researcher they help me with faster coding, as a consultant they help with faster transition of projects from startup to handover stage and as an R instructor helps me get people to learn R faster.

I wish Python had some GUIs though ;)

from the open access journal of statistical software-

**JSS Special Volume 49: Graphical User Interfaces for R**

**Graphical User Interfaces for R**

*Pedro M. Valero-Mora, Ruben Ledesma*

Vol. 49, Issue 1, Jun 2012

Submitted 2012-06-03, Accepted 2012-06-03

**Integrated Degradation Models in R Using iDEMO**

*Ya-Shan Cheng, Chien-Yu Peng*

Vol. 49, Issue 2, Jun 2012

Submitted 2010-12-31, Accepted 2011-06-29

**Glotaran: A Java-Based Graphical User Interface for the R Package TIMP**

*Joris J. Snellenburg, Sergey Laptenok, Ralf Seger, Katharine M. Mullen, Ivo H. M. van Stokkum*

Vol. 49, Issue 3, Jun 2012

Submitted 2011-01-20, Accepted 2011-09-16

**A Graphical User Interface for R in a Rich Client Platform for Ecological Modeling**

*Marcel Austenfeld, Wolfram Beyschlag*

Vol. 49, Issue 4, Jun 2012

Submitted 2011-01-05, Accepted 2012-02-20

**Closing the Gap between Methodologists and End-Users: R as a Computational Back-End**

*Byron C. Wallace, Issa J. Dahabreh, Thomas A. Trikalinos, Joseph Lau, Paul Trow, Christopher H. Schmid*

Vol. 49, Issue 5, Jun 2012

Submitted 2010-11-01, Accepted 2012-12-20

**tourrGui: A gWidgets GUI for the Tour to Explore High-Dimensional Data Using Low-Dimensional Projections**

*Bei Huang, Dianne Cook, Hadley Wickham*

Vol. 49, Issue 6, Jun 2012

Submitted 2011-01-20, Accepted 2012-04-16

**The RcmdrPlugin.survival Package: Extending the R Commander Interface to Survival Analysis**

*John Fox, Marilia S. Carvalho*

Vol. 49, Issue 7, Jun 2012

Submitted 2010-12-26, Accepted 2011-12-28

**Deducer: A Data Analysis GUI for R**

*Ian Fellows*

Vol. 49, Issue 8, Jun 2012

Submitted 2011-02-28, Accepted 2011-09-08

**RKWard: A Comprehensive Graphical User Interface and Integrated Development Environment for Statistical Analysis with R**

*Stefan Rödiger, Thomas Friedrichsmeier, Prasenjit Kapat, Meik Michalke*

Vol. 49, Issue 9, Jun 2012

Submitted 2010-12-28, Accepted 2011-05-06

**gWidgetsWWW: Creating Interactive Web Pages within R**

*John Verzani*

Vol. 49, Issue 10, Jun 2012

Submitted 2010-12-17, Accepted 2011-05-11

**Oscars and Interfaces**

*Antony Unwin*

Vol. 49, Issue 11, Jun 2012

Submitted 2010-12-08, Accepted 2011-07-15