There’s certainly no shortage when it comes to iPhone apps that turn your device into a pocket-sized scanner. At various times, TUAW bloggers have reviewed or discussed Readdle ScannerPro [US$6.99 (currently on sale for US$4.99), iTunes Link], DocScanner [US$8.99, iTunes Link], and JotNot [US$4.99, iTunes Link]. Of course, there is also a flock of business card scanners, but what I’m discussing in this post are the apps that say that they’ll replace that flatbed scanner on your desk with a device you already have in your pocket or purse.

MobiTech 3000 just released version 2.0 of the JotNot scanner app, and the update appears to be quite useful. I’ve owned the app for a while and have successfully used it to capture documents for posterity. The update provides a few additional features that I had been hoping for:

• Multipage support
• Automatic edge detection
• WebDAV/iDisk support
• Camera stabilization (requires OS 3.1)
• Automated backup of scans
• Reordering pages
• An extensive web-based help
• In app support

I love the iPhone navigation app competition that’s taking place. Navigon has sent Apple a rather nifty update that adds some unique features that are sure to please current owners and perhaps entice those still on the fence about getting some kind of GPS technology for their iPhone. The Navigon MobileNavigator app [iTunes link] is on sale through today for U.S. $69.99

Here are the goodies on the way:

• Enhanced Pedestrian Mode: It features a new user interface and uses the digital compass built into the iPhone 3GS. The map now automatically moves with the user making it easy to recognize in which direction to walk.
• Google Local Search: Users can easily find their way to new places. Simply entering “steak Chicago,” for example, provides a comprehensive list of steak restaurants in the Windy City. By clicking on one of the search results, users are guided to the destination.
• Navigate by Geographical Coordinates: Navigate using latitude and longitude, and email those coordinates to others.

Gee, I thought we had seen all the nav apps, but new ones keep popping up. NDrive, a new U.S. $32.99 app [iTunes link] is actually pretty good for the money, and has a reasonably complete feature set. I don’t put it in the class of the TomTom, Navigon or Magellan apps, but they cost twice as much.

Here’s what you get for your 32 bucks plus change:

• The maps are built into the app. No cell connection needed
• Auto day/night switching
• Alarms for speeding
• Portrait, landscape mode
• Alphabetical or QWERTY keyboard option
• POIs with favorites, descriptions, phone and website links