Yes, awesome is what I would rate such a software /website. I am particularly interested in the first 3 features of the tool:
- Inserting stress marks for every word in any Russian text
- Looking up grammatical information such as case, gender, number for any word
- Looking up all the inflected form of any word
However I have a concern is about the stress mark. How do you determine which word is stressed if the word is similarly spelled, for example замок, and other such words which have different meanings depending on how the word is stressed.
Apart from that I've always had problems with the grammatical information of words in more complex sentence constructions and thus the tool, if it really works, would be like a god sent.
Cheers and wishing you every success!