Raspberry Pi model B!!!
1) APRS + WX Station
2) Echolink
The best about this small computer is that its cost is amazingly low (35 USD) 27 EUR. Also its current consumption is as little as when you charge your mobile phone!!! That means that we can have APRS + WX station data via internet working 24/7 with minimum current consumption cost!!
More to come,
73 de SV1JRF