These are the parts of DTFoundation which deal with specific topics, dual-platform unless noted.
iOS and OS X
NSURL for constructing a signed request URL for Amazon’s Product Advertising API
A parser for data in ASN.1 format, see DTASN1Parser.
An event-based parser for HTML data, based on libxml2.
A block-based reachability solution.
Objective-C wrapper for SQLite
Helpful methods for dealing with UTIs
Handing of Pkzip and GZip files
A container view controller with a main view and one or two optional panels that appear when moving the main view to the left or right side.