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A stunning display of how books can evolve on the iPad, this presents the periodic table with animated 3-D models of elements + products.
Explore the solar system on iPad or iPhone as a series of 3-D planet, moon, and sun models with light and shadows, plus educational info.
For iPad and iPhone, this richly featured astronomy app can use the iPad’s compass to show you real constellations and planets.
Capable of winning chefs over to the iPad on first sight, this app presents recipes with great layouts, photos, and very smart sorting tools.
As a great early edutainment release for iPad, this app teaches the alphabet, numbers, shapes, and colors with voices and a song.
Based on Apple’s Mac iWork app, Keynote lets you create attractive animated slideshows with a fairly easy touchscreen interface.
Formerly called NewsStand, this is the best RSS newsreader app we’ve seen, with a list of sources on the left and RSS or web content at right.
Dr. Seuss’s ABC
One of several Seuss books now in iPad/iPhone format, this app shows how voice narration and tappable art can enhance a classic.
Unlocks the potential of the iPad’s PDF, Office, and other document reading features by downloading and storing a library of files.
Watch current and prior season, ad-supported TV shows on demand, using HD resolution over Wi-Fi, downgraded over 3G. Awesome.
Amazon’s device-agnostic digital book reading software is a rival for Apple’s iBooks, with a larger store but more limited interface.
Apple’s Mac iWork spreadsheet program gets an iPad version with dynamic switching keypads and some of the prior templates.
Another Mac iWork app, this word processor has multiple fonts, premade page and poster templates, and PDF export abilities.
Currently our Twitter client of choice for iPad, this manages multiple accounts, shows photos in your timeline, and includes a browser.
CoPilot Live HD
Aggressively priced and frequently enhanced, this app turns the iPad with Wi-Fi + 3G into a big GPS, with live Facebook + POI updates over 3G.
Smart, simple postprocessing transforms flat digital photos into stunning pieces of art with depth of field, contrast, and vignetting tweaks.
AIM for iPad
This instant messaging client works on the AOL/iChat network, and gathers Facebook, Twitter, and other updates for easy viewing.
Though buying comics from a device-specific app isn’t wise, Marvel’s reader interface is great, as is its library of famous $2 past issues.
From text and photos to podcasts and radio shows, this app offers an engaging interface for consuming news, feature stories, and audio.
Manages your DVD rental queue and, for $9/month, offers unlimited streams from tens of thousands of movies + TV shows over Wi-Fi or 3G.
If it’s on the web and you want to save it for offline viewing, this app grabs it, reformats fonts and backgrounds for you, and adds a dictionary.
The power of the popular desktop pro diagramming app comes to the iPad with gestures such as object rotation + multi-item selection.
Create professional-looking graphs and charts by drawing on the touchscreen rather than crunching numbers; compatible with the Mac version for imports and exports.
The popular cloud-based storage client arrives on the iPad with support for uploading photos and sharing files with other iPad applications.
Indispensable for academics, this app provides online access to research papers and scholarly publications, focused on science.
View and take remote control of your Mac or PC from your iPad, including simultaneous screen view and full screen view in landscape mode.
A stylish, powerful free-form notebook to jot and sketch ideas using impressive digital pen technology. Lets you share notebooks and pages via PDF.
IMDb Movies and TV
Search and browse the Internet Movie Database with a redesigned app that uses the iPad’s larger screen and UI enhancements to speed your research.
Air Sharing HD
File sharing and management; lets you connect to third-party servers, view documents and PDFs, and even print to Wi-Fi printers.
The intuitive iPhone photo editing app adds new effects and tools that take advantage of the iPad’s larger screen and processing power.
Securely stores secret info and passwords, with a built-in browser so you can auto-login to web sites and fill them in. Syncs with Mac + PC.
A powerful research app that allows users to store pages for offline reference and queue up links for later while reading an article.
Completely redesigned for iPad, this app stores bits of information in text, audio, or photo format, and offers a map view for geotagged notes.
Don't forget to share your favorite iPad apps in comments below.