mobile-phones

If I am to send a message to a mobile device from a website and viceversa, how can that be done? What I know: A couple of years ago I developed a simple enrollment system on J2ME platform(just for trying J2ME out). I had a mysql database that I setup in a pc/server, and for the communication I used the static IP of that server. I had a bridge, a mobile phone which was connected to the internet, where clients would send a formatted message. That bridge then would send the message to the server, after verification and validation, the server would respond back to the bridge, and finally the

which API or library on which mobile OS is to be used when one needs to write a code to use the phone's IrDA to create the necessary impulses to remote control consumer electronics e.g. a HDD media player? Is maybe a certain mobile OS better suited for that kind of application than others? First you need to know that IrDA is not the best choice for remote control. It can be done, but IrDA is by design high speed/low range, you can emulate low speeds but ranges (IMO) are far from practical usage (Nokia e50 is able to control digital camera shutter from 2-3m... with very, very careful aiming).

Which Mobile Application platform do developers prefer for Bluetooth Based application development ? What do developers think on the current available API's on these platforms ? Does it meet most of your needs ? What kinds of APIs / capabilities for applications would you like to see. The iPhone is a bit locked down for general Bluetooth connections. Between iPhones it's easy, using GameKit. Between iPhone and headset is also, as I understand it, easy. But when it comes to talking to an arbitrary device over BT you need to use the External Accessory framework. This is fine and easy to use, but

What tools helps designing sites which would be mobile phone friendly ? Something that would product the right CSS, the right html, etc I doubt you'll find too much that would make good markup for mobile phones across the board. Here is a table for compatibility for different mobile browsers: http://www.quirksmode.org/m/table.html If you are trying to make a page that works in a ton of mobile browsers, keep that chart close by. If you are just looking for a way to make iphone specific mobile sites, you should check out jqTouch and/or XUI JS The mobile aspect really has to be considered at the

If you had some social networking applications and you wanted your users to interact with them using a mobile device would you use WAP or a slimmed down version of your regular website with HTML? My train of thought is that WAP is dead or at least starting to bleed to death because of all the mobile web browsers available (Iphone, Opera Mini). Is this a good assumption? Also, what kind of audience considerations should you take into account when choosing what kind of mobile access you wanted to develop? I'm ot sure about my target devices. I'm pretty sure my users will be more "modern" so we

Is it possible to make a cell phone transmit arbitrary radio waves at a certain frequency? Or does the Mobile OS only allow higher level access? If the answer is 'no' as I expect it is, is there any way to make a phone talk to another electronic device remotely without handshakes and the like? Probably not - as EFraim indicated, there'll be regulatory frameworks in place to say that devices of type A must use frequencies in the range X-Z with no more than a certain power output. Additionally there's physical issues as well as to be able to broadcast at different frequencies requires different

What is the general communication architecture for two android applications? Case 1: I have two android applications, a) One is a server that waits for client request, process the request( read data from some sqlite db) and return the results to the client. This server application runs on its own independent android phone. b) The second is the client that sends the request to the server application in (a) and it too runs on its own independent android phone. Question is, do the two applications have to go through the Mobile Service Provider to enable communication? or they can just talk to