Problem in Arduino - Android connection

Hi there,
here's my stuff: Arduino(1.0.5 IDE) Mega ADK board and Android 4.1.2 Sony Xperia Go with a wifi connection to the internet

Following the book "Professional AOA Programming with Arduino"...

All fine until... Temperature sensor project ,where the first connection with an Android is established.
The Android detects the Arduino but displays the message
"TITLE: Temperature Sensor
No installed applications work with this USB accessory. Learn more about this accessory at http://media.wiley.com/product_ancillary/66/11184547/DOWNLOAD/t.apk"
So nothing happens.

I thought that perhaps the apk could have a problem so I installed it on the mobile through the PC, but it works fine and the Arduino communicates with it!

I probably can follow the book through, don't know, but does anyone know how this problem can be solved?
All the best,
Rui

In the meantime I've tried this code: USB_Host_Shield_2.0/ArduinoBlinkLED.ino at master · felis/USB_Host_Shield_2.0 · GitHub
but in this case connecting the Android phone gives me no action at all!

Are there any hints on how to solve this problem?

Hello

Perhaps isn't the right place to post this... but... I don't know where to put it...

Few months ago, I've bought the following bluetooth module - 'JY-MCU'
http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=230735842973&ssPageName=ADME:L:OU:ES:3160

I usually use it to stablish communication between Arduino and my Laptop, without any problem.

It happens that now I'm trying to develop an application to communicate between my Android phone (Samsung Galaxy Mini GT-S5570 with Android 2.3.6) and Arduino.
The Android phone don't detect the bluetooth module...

I've tried to pair an 'AEG Glamour'-'bluetooth module', detects the module, ask the code, but it seems that also doesn't pair, because the red light don't stop blinking...

With my Android phone I can pair with my laptop, iPod and even with my Bose Mini SoundLink, but not with Bluetooth Module Slave.

So perhaps I'm missing some configuration on my Bluetooth Module Slave or some protocol... I really don't know...

Please let me know
Thanks on advance
Best regards
Pedro Ferrer