hi
I have more than 4 years of experience in sencha ext js and sencha touch . I have 7 years of experience in php, java and jquery, JavaScript, CSS etc. I have developed many applications in sencha using php for back end services which return data in json or XML format. I can drive you high quality work with all the requirements. please let me know if you want me to do this work or if you have any question.
thanks,
Ayan Dasgupta