At the beginning of one’s career, every mobile application developer faces the choice – what platform to choose? At present the number of mobile platforms can scare everybody – Android, iPhone, BlackBerry, Windows Mobile, Symbian.
To start with, you have to define the main aims of the project – the commercial software development, amateur development (open source applications)- as well as the end users.
From the point of view of monetarization (commercial development) at present the leaders are iPhone OS and Windows Mobile. The main advantage of choosing these platforms is a big number of users that get used to paying for the software. The main disadvantage is the necessity to compete with more than 500 mobile apps on any taste that have already been created. Moreover, Apple has got a tough policy on approving the requests for new applications, consequently, much time may pass before your app appears in the App Store, which makes it difficult to invest time and money into iPhone OS.
On the other side, if we look ahead, another interesting variant may be Android OS. Why? Because the database of Android OS users is growing every day. The analytics forecast that by the year 2012=2013 Android-based devices will beat iPhone and even Windows Mobile. Moreover, Google has started teaching its Android users that Android mobile application developers will produce free as well as paid applications and the geography of the countries where the payment can be carried out wil
l be extended.
The version of the store is available from the PC as well as from mobile devices. In the first case, you will have to choose the operating system and the model of the phone where you are going to look for applications yourself and in the second case the operating system definition will be done automatically.
Android’s market share of free applications stands out against the competitors’ one: about 57% of applications at the Android Market can be obtained for free. At the App Store the number of such applications is 28%, at the 
Many of us are Smartphone owners, some use 
Now you can show your location to the best friends via Google Latitude! The service Google Mobile Maps introduced a new feature called Google Latitude. It gives the opportunity to indicate user’s location and show it to selected contacts via mobile phone (using the GPS). You may be know this flashing blue dot on the map, which shows your location, wherever you are. In other words Google Latitude gives you the opportunity to “share” this blue dot with anyone you want.