Tryy making a Visio Network Diagram with an Ipad. try reading a CAD plan on an Ipad........
Hey, I was only talking about my own needs. I wasn't saying everyone else could live with only an iPad. :-)
You want to rethink the CAD on iPad grip.
From Autodesk’s website:
Extend AutoCAD to Web & Mobile Devices
The AutoCAD® WS web and mobile application for AutoCAD® software lets you view, edit, and share DWG drawings through a web browser or mobile device. Now you have the freedom to work virtually anywhere and with almost anyone. Store AutoCAD drawings and project files in an easy-to-access online workspace. View and edit your designs online or on your mobile device. Share and collaborate easily with others; theres no software required, and its free*.
Watch AutoCAD WS Videos on Our YouTube Channel
Online DWG viewerAccess your AutoCAD drawings from anywhere. All you need is a web browser.
Web-based CADEdit drawings online using many familiar and intuitive drawing and editing tools.
CAD for mobile devicesWork on AutoCAD drawings directly from your Apple® iPad, iPhone®, or Google Android device.
No software requiredInvite team members to review and edit DWG drawings online.
Collaborate in real timeConduct online design reviews with participants in multiple locations.
Track and manage changesRecord changes to designs in a timeline for version control and auditing.
Edit OfflineWork with your DWG files offline without a 3G or Wi-Fi connection from your mobile device.
I have a friend who uses it for on-site visits.