Portable Abiword is the lightweight AbiWord word processor packaged as a portable app, so you can edit your documents on the go.

Portable AbiWord is a free word processing program similar to Microsoft Word. It is suitable for a variety of word processing activities and has the ability to read and write a number of document types including Microsoft Word, Word Perfect, OpenOffice.org, RTF, HTML, Palm and more. It includes both grammar and spelling checkers as well as an array of other handy features including mail merge capabilities. It also has a plugin system allowing you to add features with available add-on plugins.

Features
Use tables, bullets, lists, images, footnotes, endnotes and styles to enhance the way your document looks.
AbiWord is available in most common and many not-so-common languages.
Built-in spelling checker. Dictionaries exist for over 30 languages.
Supports right-to-left, left-to-right, and mixed-mode text.
Mail Merge capabilities.
A variety of plugins can be used to extend AbiWord´s functionality, ranging from Document Importers to a Thesaurus, Image Importers and a Text Summarizer.