To access the iPhone and Android native phone capabilities it is OK to use PhoneGap but not a requirement. The speech to text software should be native to the phone or use an open free API. The below articles might point you in the right direction:
1) [url removed, login to view]
2) [url removed, login to view] - This is in Russian but use Bing translator.
To bid on this project please create a proposal. In the proposal describe the development tools that you will use. I would like to know the technical details of what APIs you will call, how the speech to text will be translated and etc... Also include an estimate on how many hours you think it will take to complete this project. You will be awarded the project based on the technical design in the proposal. The proposal needs to show the technical feasibility of your design.
17 freelancers are bidding on average $2329 for this job
dear sir, we can really intrested in ur project and we ensurred you we can provide you world class project in a very short period. pls see the pmb. thanks
Dear Sir, I am very strong at C/C++, PHP, Javscript, Databases, etc. Besides, I have skill at Voice Recognitions. Thank you very much. Best Regards, Sayed Mulkhan F