Calca: Text Editor + Math = "Literate Programming"

iOS app created in C# with Xamarin tools
In fact it was created on Mac, not on Windows!

Calca - The Text Editor that Loves Math


Podcast interview @ Hanselminutes

This is also an example of "Literate Programming"
"is an approach to programming introduced by Donald Knuth in which a program is given as an explanation of the program logic in a natural language, such as English, interspersed with snippets of macros and traditional source code, from which a compilable source code can be generated"

the same author previously created popular iCircuit, also in C#

code reuse from Mac to iOS

Google Nexus 4: $199

Google Drops the Price of the Nexus 4 by $100

"Google has dropped the price of the Nexus 4 by $100. The company announced the price drop yesterday evening via the Google Play Twitter feed. The 8 GB model now sits at $199, marked down from $299, while the 16 GB model has dropped to $249 from $349."