While Apple Stores were thronged for the iPad debut in the United States on Saturday and the California firm was flooded with pre-orders, analysts said it remained to be seen whether the tablet computers would transform culture.
"We think it will be a success no matter what," Gartner Research distinguished analyst Ken Dulaney told AFP.
"Tablets have not done well in the past. If Apple changes that paradigm, they are on a new road."
Innovative new applications "plus using it as a television set" should drive iPad purchases, according to Delaney.
The Walt Disney Company has released an application for watching ABC television shows on the iPad.
US video rental titan Netflix and Warner Brothers entertainment studio have "apps" to deliver content to the devices.
Software savants who made fortunes crafting mini-programs for iPhone and iPod Touch devices were quick to focus on designing applications for the iPad.
The enthusiasm of developers bodes well for iPad, since the "ecosystem" of fun or functional programs is credited with being behind Apple mobile gadgets' success as marketplace stars.
iPad programs were filling up virtual shelves of Apple's online iTunes shop.
Even internet leader Google threw its weight behind the iPad, rolling out a version of its free web-based email service for Apple's latest creation.
And while the iPad is seen as a threat to Kindle electronic readers, Amazon.com has released an application that lets people read digital books from the Kindle Store on the Apple gadgets.
Hope for 'fractured media market'
German TV journalist Richard Gutjhar, 36, said he hoped the multi-media device would bind together the increasingly fractured media market and help newspapers and other outlets collect revenue in an age where content circulates for nothing on the internet.
"I believe our work must be paid and if this will help, then that would be great," he said, after securing his small place in consumer history as the first person to exit the New York City Apple Store with a new iPad.
The iPad provides a comfortable way to enjoy audio, video, photos and games while making internet use simple, according to Scott Steinberg, head of technology consulting firm TechSavvy Global.
"The iPad is, in many ways, simply a proof of concept that's certain to get better over time," Steinberg said.
"More importantly, it may prompt a paradigm shift in the way we look at portable computing, including serving to reignite interest in the tablet personal computer category as a whole."
Hundreds countdown at flagship store
The flagship Apple Store in New York greeted hundreds of people Saturday who had waited since just after dawn with high fives, whooping and a New Year's Eve-style countdown.
Many of the shoppers were from outside the United States, which is initially the only country to sell the touch-screen tablet, retailing at between $US499 ($A544) and $US829 ($A904).
Adi Thomas, who flew in from Australia, said the iPad was "slim, beautiful".
"I really want to get it home and play with it," Thomas, 38, said.
Dutch IT consultant Hans Schoenmakers, 49, proudly declared himself the first person from the Netherlands to own the shiny gadget.
"It's better than I thought. I will use it for email while on the couch - and internet and reading books," he said.
The iPad leapt into the Top Ten list of topics at microblogging service Twitter, where "awesome" and "amazing" were popular adjectives that buyers used to describe Apple's latest creation.
"Wow, loving the iPad so far," Digg social news website founder Kevin Rose said in a Twitter message.
Those not interested in buying the iPad were also busy tweeting, with comments bashing the devices weighing in roughly equal with messages of adoration, according to Tweetfeel, a service that gauges sentiment by analysing Twitter streams.
iPads quickly popped up on popular online auction website eBay, some offered at prices hundreds of dollars higher than those charged at Apple stores.
There was an array of offers at eBay to sell website names or email addresses playing off "iPad". One seller was asking $US999.99 ($A1,090.40) for the rights to "ipad-experthotmail.com".
The iPad's offering
The 24.6cm device allows users to watch video, listen to music, play games, surf the web or read electronic books.
Unlike a laptop, the keyboard is touch-screen, making for a far slimmer, lighter package. It starts up as easily as a phone, customers said, and has lightning-fast internet access.
In addition, the iPad also runs most of the 150,000 applications made for the iPod Touch and the iPhone.
Analysts predict Apple will sell 300,000 to 400,000 iPads by the end of the weekend.
The model that went on sale on Saturday features Wi-Fi wireless connectivity, while a model offering both Wi-Fi and 3G cellular connectivity will appear in late April.
