Greetings,
Your request for a customer instant messenger for $150 would not produce a web application like MSN Messenger as you gave an example. Instant Messengers can do quite more than just communicate with people on your buddy list, or in your web forum. They have built in functions for notificatioins, options, friend list, block sender list, etc. Will you require this app to store saved messages, allow you to export or view msg history? Unless you are looking for a 2-way web communication application, your MSN Messenger clone will not happen as you want for $150.
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