Gem for creating letter avatar from user's name (or any other string :-) ).
Ruby CSS Parser
Ruby wrapper for google's cityhash.
resque-status is an extension to the resque queue system that provides simple trackable jobs.
A Ruby client access library for Microsoft Exchange Web Services (EWS)
tap + haiku = tapku, a well crafted open source iOS framework
Elegant Line Graphs for iOS (charting library)
A Rails engine that adds a piece of middleware to the top of your middleware stack that looks for redirect rules stored in your database and redirects you accordingly.
Rails plugin for the RubyCAS-Client
Ruby client for Yale's Central Authentication Service protocol -- an open source enterprise single sign on system for web applications.
Provides a single sign-on solution for web applications, implementing the server-end of JA-SIG's CAS protocol.
Validate e-mail addreses against RFC 2822 and RFC 3696 with this Ruby on Rails plugin and gem.
A gem to automate using jQuery with Rails 3
Simplifies using the Google Contacts V3 API
Custom progress bar for use in ajax apps.
A jQuery plugin for text input dropdowns
Web app for controlling deployment target revisions via Chef.
A jQuery Masonry alternative with CSS-driven configuration.
Show directions directly on top of MKMapView
RATreeView provides you a great support to display the tree structures on iOS.
Nested Accordion view for iOS
The Objective-C block utilities you always wish you had.
Simple Cocoa wrapper for the Google Geocoding Service
Ckeditor integration gem for rails
Bootstrap alerts and Rails flash messages combined in one easy-to-use gem.
Appcelerator Titanium Mobile
Enables easy display of items (taken from a Rails 3 model) with Google Map, OpenLayers, Bing or Mapquest. Geocoding + Directions included. Provides much options: markers customization, infowindows, auto-adjusted zoom, polylines, polygons, circles etc... See wiki for full description and examples.