MyWebClip is a well executed way to manage web app bookmarks. The developer has a strong understanding of designing on the iPhone so that you would think it is a native app. Apple should incorporate some of its features into the iPhone’s OS.

Organizer is useful for writing your daily plans, jotting down your ideas and for an advanced memo tool. The options in this application for making notes are impressive, but lack of calendar integration lets it down.

TextGuru is a full fledged text editor for the iPhone. It let’s you organize files in nested folders, offers cut, copy and paste, can share files via wifi, and can import files via FTP and the Internet. It also serves as a viewer of common file formats such as PDF, MS Office, and more. It’s a jack of all trades utility for those serious about their documents.

Appigo Todo is a task management app with a streamlined user interface. It includes ways to tag and otherwise set todo items apart, robust search and filtering, and is augmented by several synchronization options as well as tight integration with Appigo Notebook, a note taking app available from the same author.

RaonbowNote allows you to keep all of your notes on you iPhone — and back them up to Google Docs

OmniFocus, the fantastic GTD task manager comes to the iPhone, and it rocks!