Everyone is going to flame me for this but what the hell -
Dude, please.. spell and grammar check before you post stuff on your blog. There is no way you are going to be taken seriously if your content reads like a C-average high school essay.
1. "Its" versus "It's". Its is possesive. It's means "it is".
2. "game-changing device with graphical user interface." should be "a game-changing device with a graphical user interface." Notice the "a".
3. "but it’s competitors" - you mean this: "by its competitors". Notice the BUT and the ITS.
4. "they offered cheaper version of Mac also with graphical user interface" should be: "they offered a cheaper version of the Mac which had the same graphical user interface".
That's just the first paragraph :) But writing is hard, especially if it's not your native language, so don't give up.
Thanks again!
BTW - I'm a startup guy. I never give up :)
"it's" is used in almost all cases for "it is"
"It's a beautiful day outside"
"Apple showed off its Iphone 4.0 update today"
"between today market situation and the past" .. "between today's market situation and the past" - "Today" is used as a possessive so it owns the "market situation". Ownership (in many cases) necessitates an apostrophe+"s". This is John's car. Tomorrow is Kate's birthday. It's a nuance that an ESL student can easily miss.
In fact, rereading your entire post I see many things that are rules that can easily be overlooked by ESL students.
Also, dashes ("-") should not be used for pauses unless they are being used for dramatic effect (someone will correct me on this and that's OK.) In every place where you used it (I count 4) it should either be replaced with a comma or eliminated.
"Apple announced it’s newest baby – game-changing device" .. "Apple announced its newest baby, a game-changing device"
"During the “PC war” there was a common platform for all the PC Clones – it was Microsoft DOS/Windows." .. "During the “PC war” Microsoft DOS/Windows was the common platform for all the PC clones."
"And here we are today – Apple is not afraid of competitors" .. "So here we are today. Apple is not afraid of competitors"
"we know it can be done – JQTouch anyone?" - OK
"write native apps for Android – instead they should reward" .. "write native apps for Android. Instead they should reward"
Just keep writing and practicing your skills.
No. "Its" is a possessive, which puts it in the same class as words like "his" and "hers". If it were a contraction for "it is" then you'd definitely need the apostrophe.
Ah well. Someone on the internet was wrong, I had to correct them. :)
One of those other basic but trial-and-error rules of English: don't implicitly refer to something that's a long way away (in this case 4 phrases distant) from your sentence or someone will misunderstand you.
Many people might already know that after reading your blog. However, the note may eliminate some flames from other people who don't think of this possibility
Of course, this doesn't preclude your learning better English grammar
With that said, here's a quick rewrite of some of your copy. You can use it verbatim if you like it, but otherwise I will not be offended if you think its terrible either =)
------
The Internet gives You the unique opportunity to change the way You interact with Your customers.
Let's imagine you want to sell shoes on the Internet. You go to a site like eBay.com and signup. With a couple of clicks you get instant access to a huge marketplace of buyers and sellers, powerful merchant tools like payment processing, inventory management and automatic printable shipping labels; you get a complete service solution instantly.
But what if you sell services?
Selling & delivering shoes is not like selling & delivering services. Service-based businesses typically must deal with:
-- Long, drawn-out sales cycles.
-- Project delivery and continual customer communication.
-- Virtual team management and subcontracting.
-- Billing & invoicing - often in phases based on billable man-hours.
-----
Notes:
I took out a lot of unecessary filler words. You don't need to put things like "we feel", or "I believe", be confident and talk as if it's fact! Also be very conscious of using "I" and "we". Replace those with "YOU" when applicable. The application, the service, the benefits, its all about YOUR CUSTOMER. YOU YOU YOU YOU YOU. Get used to writing about your customer.
Hope this helps.